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.mbox-invalid-type{text-align:center}@media(min-width:720px){.mw-parser-output .ombox{margin:4px 10%}.mw-parser-output .ombox.mbox-small{clear:right;float:right;margin:4px 0 4px 1em;width:238px}}body.skin--responsive .mw-parser-output table.ombox img{max-width:none!important}@media screen{html.skin-theme-clientpref-night .mw-parser-output .ombox-speedy{background-color:#310402}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .ombox-speedy{background-color:#310402}}</style><table class="plainlinks ombox ombox-notice" role="presentation"><tbody><tr><td class="mbox-image"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/1/1d/Information_icon4.svg/40px-Information_icon4.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/1/1d/Information_icon4.svg/60px-Information_icon4.svg.png 1.5x, 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This page is not one of <a href="/wiki/Wikipedia:Policies_and_guidelines" title="Wikipedia:Policies and guidelines">Wikipedia's policies or guidelines</a> as it has not been <a href="/wiki/Wikipedia:Consensus#Levels_of_consensus" title="Wikipedia:Consensus">thoroughly vetted by the community</a>.</div></div></td><td class="mbox-imageright"><style data-mw-deduplicate="TemplateStyles:r1252059228">.mw-parser-output .module-shortcutboxplain{float:right;margin:0 0 0 1em;border:1px solid var(--border-color-base,#a2a9b1);background-color:var(--background-color-base,#fff);padding:0.3em 0.6em 0.2em 0.6em;text-align:center;font-size:85%}.mw-parser-output .module-shortcutboxleft{float:left;margin:0 1em 0 0}.mw-parser-output .module-shortcutlist{display:inline-block;border-bottom:1px solid var(--border-color-base,#a2a9b1);margin-bottom:0.2em}.mw-parser-output .module-shortcutboxplain ul{font-weight:bold}.mw-parser-output .module-shortcutanchordiv{position:relative;top:-3em}.mw-parser-output li .module-shortcutanchordiv{float:right}.mw-parser-output .mbox-imageright .module-shortcutboxplain{padding:0.4em 1em 0.4em 1em;line-height:1.3;margin:0}</style><div class="module-shortcutanchordiv"><span id="MOS:CSDG"></span><span id="MOS:CHEM/Structure"></span><span id="WP:Chem/Structures"></span><span id="MOS:Structure_drawing"></span></div><div class="module-shortcutboxplain noprint" role="note"><div class="module-shortcutlist"><a href="/wiki/Wikipedia:Shortcut" title="Wikipedia:Shortcut">Shortcuts</a></div><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"><ul><li><span class="plainlinks"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=MOS:CSDG&redirect=no">MOS:CSDG</a></span></li><li><span class="plainlinks"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=MOS:CHEM/Structure&redirect=no">MOS:CHEM/Structure</a></span></li><li><span class="plainlinks"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=Wikipedia:Chem/Structures&redirect=no">WP:Chem/Structures</a></span></li><li><span class="plainlinks"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=MOS:Structure_drawing&redirect=no">MOS:Structure drawing</a></span></li></ul></div></div></td></tr></tbody></table><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Explanatory essay about Wikipedia:Manual of Style/Chemistry</div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><style data-mw-deduplicate="TemplateStyles:r1246091330">.mw-parser-output .sidebar{width:22em;float:right;clear:right;margin:0.5em 0 1em 1em;background:var(--background-color-neutral-subtle,#f8f9fa);border:1px solid 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.sidebar{width:100%!important;clear:both;float:none!important;margin-left:0!important;margin-right:0!important}}body.skin--responsive .mw-parser-output .sidebar a>img{max-width:none!important}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sidebar:not(.notheme) .sidebar-list-title,html.skin-theme-clientpref-night .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle{background:transparent!important}html.skin-theme-clientpref-night .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle a{color:var(--color-progressive)!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-list-title,html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle{background:transparent!important}html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle a{color:var(--color-progressive)!important}}@media print{body.ns-0 .mw-parser-output .sidebar{display:none!important}}</style><table class="sidebar nomobile nowraplinks" style="border:1px solid #a3b1bf;width:auto;background:#f5faff;"><tbody><tr><td class="sidebar-pretitle" style="background:#cee0f2;"><i><a href="/wiki/Wikipedia:Manual_of_Style" title="Wikipedia:Manual of Style">Manual of Style</a></i></td></tr><tr><th class="sidebar-title-with-pretitle" style="background:#cee0f2; display:block;margin-bottom:0.3em;"><a href="/wiki/Wikipedia:Manual_of_Style/Chemistry" title="Wikipedia:Manual of Style/Chemistry">Chemistry</a></th></tr><tr><td class="sidebar-content plainlist" style="font-size:110%;line-height:1.4em;"> <ul><li><a href="/wiki/Wikipedia:Naming_conventions_(chemistry)" title="Wikipedia:Naming conventions (chemistry)">Article titles</a></li> <li><a href="/wiki/Wikipedia:Chemical_infobox" title="Wikipedia:Chemical infobox">Chemboxes</a></li> <li><a href="/wiki/Wikipedia:Manual_of_Style/Chemistry/Chemicals" title="Wikipedia:Manual of Style/Chemistry/Chemicals">Chemicals</a></li> <li><a href="/wiki/Wikipedia:Manual_of_Style/Chemistry/Compound_classes" title="Wikipedia:Manual of Style/Chemistry/Compound classes">Compound classes</a></li> <li><a href="/wiki/Wikipedia:InChI" title="Wikipedia:InChI">InChI</a></li> <li><a href="/wiki/Wikipedia:Naming_conventions_(chemistry)" title="Wikipedia:Naming conventions (chemistry)">Nomenclature</a></li> <li><a class="mw-selflink selflink">Structure drawing</a></li> <li><a href="/wiki/Wikipedia:Chemical_safety" title="Wikipedia:Chemical safety">Safety</a></li> <li><a href="/wiki/Wikipedia:Manual_of_Style/Chemistry/References_and_external_links" title="Wikipedia:Manual of Style/Chemistry/References and external links">References and<br/>external links</a></li></ul></td> </tr><tr><th class="sidebar-heading" style="font-weight:normal;font-style:italic;padding-bottom:0;"> Categories</th></tr><tr><td class="sidebar-content plainlist" style="font-size:110%;line-height:1.4em;"> <ul><li><a href="/wiki/Category:Chemistry_templates" title="Category:Chemistry templates">Templates</a> <span style="font-size:85%;">(<a href="/wiki/Category:Chemistry_citation_templates" title="Category:Chemistry citation templates">citation</a>)</span></li></ul></td> </tr></tbody></table> <p>These guidelines are necessarily quite technical, and are intended for editors with some experience of drawing <a href="/wiki/Chemical_structure_diagram" class="mw-redirect" title="Chemical structure diagram">chemical structure diagrams</a> and reaction schemes. For a less technical overview of the issues involved, see <a href="/wiki/Wikipedia:Molecular_structure_diagram" title="Wikipedia:Molecular structure diagram">Wikipedia:Molecular structure diagram</a>. </p> <meta property="mw:PageProp/toc"/> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="General" data-mw-thread-id="h-General"><span data-mw-comment-start="" id="h-General"></span>General<span data-mw-comment-end="h-General"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=1" title="Edit section: General"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Chemical structures and reaction schemes should conform to the following: </p> <ul><li>Images should be drawn with a <a href="/wiki/Molecule_editor" title="Molecule editor">molecule editor</a>, never freehand</li> <li><a href="/wiki/American_Chemical_Society" title="American Chemical Society">ACS</a> settings should be used for both structures and reaction schemes. These settings are normally available as templates in <a href="/wiki/Molecule_editor" title="Molecule editor">chemical drawing programs</a>. Use <i>sans-serif</i> fonts like Arial.</li> <li>Indexes used for labelling must be superscripted: R<sup>1</sup>-CH<sub>2</sub>-R<sup>2</sup> (not R<sub>1</sub>-CH<sub>2</sub>-R<sub>2</sub>)</li> <li>Do not include English text in images: this prevents their reuse in other languages.</li> <li>Methyl groups should be denoted with “CH<sub>3</sub>”, not “Me”, unless they are bound to a heteroatom (for example, “NMe<sub>2</sub>”). This is to avoid confusion with “Me”, the German abbreviation for metal (<i>Metall</i>). The use of “Et”, “Pr”, etc., is discouraged. By default, “Ph” denotes phenyl and “X” halogen.</li> <li>The use of explicit methyl groups in the following cases is a stylistic choice, and both forms are generally acceptable on Wikipedia: <ul><li>methyl groups attached to a ring or as branches in a longer carbon chain;</li> <li>methyl groups at the end of a carbon chain.</li></ul></li> <li>If labels for structures are desired, consider the use of bolded numerals, which are language-neutral.</li> <li>Information about <a href="/wiki/Stereocenter" title="Stereocenter">stereocenters</a> and <a href="/wiki/Stereoisomerism" title="Stereoisomerism">stereoisomerism</a> should be included if available (e.g. by using wedged bonds).</li> <li>For articles on racemates, the stereochemistry should be depicted as undefined (straight and not wavy nor wedged bonds attached to the stereogenic center).</li></ul> <div class="mw-heading mw-heading3"><h3 id="Use_of_color" data-mw-thread-id="h-Use_of_color-General"><span data-mw-comment-start="" id="h-Use_of_color-General"></span>Use of color<span data-mw-comment-end="h-Use_of_color-General"></span></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=2" title="Edit section: Use of color"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>It is not necessary to color-code atoms according to element in structure drawings but if done the conventions of the <a href="/wiki/Jmol" title="Jmol">Jmol</a> scheme should be used. Note, however, that the use of yellow (<style data-mw-deduplicate="TemplateStyles:r981673959">.mw-parser-output .legend{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .legend-color{display:inline-block;min-width:1.25em;height:1.25em;line-height:1.25;margin:1px 0;text-align:center;border:1px solid black;background-color:transparent;color:black}.mw-parser-output .legend-text{}</style><span class="legend-color mw-no-invert" style="background-color:#ffff30; color:black;"> </span>) for <a href="/wiki/Sulfur" title="Sulfur">sulfur</a> is not advised as it can cause accessibility problems on a white background. Within a given article, diagrams should be consistent, which means in most cases they should use black and white except as highlighting to emphasize a particular point in specific diagrams. In all cases the advice at <a href="/wiki/Wikipedia:Color" class="mw-redirect" title="Wikipedia:Color">WP:color</a> should be followed. </p> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Technical_considerations" data-mw-thread-id="h-Technical_considerations"><span data-mw-comment-start="" id="h-Technical_considerations"></span>Technical considerations<span data-mw-comment-end="h-Technical_considerations"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=3" title="Edit section: Technical considerations"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Images should be uploaded in <a href="/wiki/.PNG" class="mw-redirect" title=".PNG">PNG</a> or <a href="/wiki/.SVG" class="mw-redirect" title=".SVG">SVG</a> format. PNG images should be around 600–720 dpi. A transparent background should be used. Images should still be readable when scaled down to 450 pixels to prevent conflicts with the <a href="/wiki/Template:Chembox" title="Template:Chembox">Chembox</a>.</li> <li>SVG images are desirable because they are infinitely scalable, while remaining compact. However, support for SVG images among common molecule editors is limited, and may not be rendered correctly on Wikipedia.</li> <li>Scanned images tend to be of poor quality. Scanned images of books or journals may violate copyright. Do not upload them.</li></ul> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Suggested_molecule_editor_settings" data-mw-thread-id="h-Suggested_molecule_editor_settings"><span data-mw-comment-start="" id="h-Suggested_molecule_editor_settings"></span>Suggested molecule editor settings<span data-mw-comment-end="h-Suggested_molecule_editor_settings"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=4" title="Edit section: Suggested molecule editor settings"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>ACS templates are available in most <a href="/wiki/Molecule_editor" title="Molecule editor">chemical drawing programs</a>. </p> <div class="mw-heading mw-heading3"><h3 id="Drawing_in_ACD/Chemsketch" data-mw-thread-id="h-Drawing_in_ACD/Chemsketch-Suggested_molecule_editor_settings"><span id="Drawing_in_ACD.2FChemsketch"></span><span data-mw-comment-start="" id="h-Drawing_in_ACD/Chemsketch-Suggested_molecule_editor_settings"></span>Drawing in ACD/Chemsketch<span data-mw-comment-end="h-Drawing_in_ACD/Chemsketch-Suggested_molecule_editor_settings"></span></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=5" title="Edit section: Drawing in ACD/Chemsketch"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/ACD/ChemSketch" title="ACD/ChemSketch">ACD/ChemSketch</a> is freeware available for personal, home, and educational use from <a rel="nofollow" class="external text" href="https://www.acdlabs.com/resources/freeware/">ACDlabs</a>. It has comprehensive chemical drawing features and can directly connect to <a href="/wiki/PubChem" title="PubChem">PubChem</a>, eMolecules and <a href="/wiki/Chemspider" class="mw-redirect" title="Chemspider">Chemspider</a> to search these large databases by structure or substructure. The program can read and write in many file formats including export of PNG files. If SVG files are required, it is recommended that structure diagrams be exported as enhanced metafiles (.emf) which can be read by <a href="/wiki/Inkscape" title="Inkscape">Inkscape</a> and other image editors. </p> <ul><li>From the "Options" menu, choose "Set Structure Drawing Style" → ACS Style</li> <li>Draw the structure or reaction diagram</li> <li>Export the file as PNG or EMF for further processing (see below)</li></ul> <div class="mw-heading mw-heading3"><h3 id="Drawing_in_Biovia_Draw" data-mw-thread-id="h-Drawing_in_Biovia_Draw-Suggested_molecule_editor_settings"><span data-mw-comment-start="" id="h-Drawing_in_Biovia_Draw-Suggested_molecule_editor_settings"></span>Drawing in Biovia Draw<span data-mw-comment-end="h-Drawing_in_Biovia_Draw-Suggested_molecule_editor_settings"></span></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=6" title="Edit section: Drawing in Biovia Draw"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>BIOVIA Draw is the current version of the original <a href="/wiki/ISIS/Draw" title="ISIS/Draw">ISIS/Draw</a> program, now owned by <a href="/wiki/Dassault_Syst%C3%A8mes" title="Dassault Systèmes">Dassault Systèmes</a> and freely available for academic and non-commercial users from <a rel="nofollow" class="external text" href="https://discover.3ds.com/biovia-draw-academic">BIOVIA</a>. Other previous versions were called Accelrys Draw and SymyxDraw. The program can read and write many file formats, other than its proprietary sketch file format (.skc) and can export PNG files. If SVG files are required, it is recommended that structure diagrams be exported as enhanced metafiles (.emf) which can be read by Inkscape and other image editors.. </p> <ul><li>From the "Options" menu, choose "Load Settings" → ACS document</li> <li>Draw the structure or reaction diagram</li> <li>Export the file as PNG or EMF for further processing (see below)</li></ul> <div class="mw-heading mw-heading3"><h3 id="Drawing_in_ChemDraw" data-mw-thread-id="h-Drawing_in_ChemDraw-Suggested_molecule_editor_settings"><span data-mw-comment-start="" id="h-Drawing_in_ChemDraw-Suggested_molecule_editor_settings"></span>Drawing in ChemDraw<span data-mw-comment-end="h-Drawing_in_ChemDraw-Suggested_molecule_editor_settings"></span></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=7" title="Edit section: Drawing in ChemDraw"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>From the “File” menu, choose “Apply document settings from → ACS Document 1996”.</li> <li>Draw the structure, and save it as a ChemDraw file.</li> <li>If you drew the structure before applying any settings, then you need to select the object, open the “Object” menu and choose “Apply document settings from → ACS Document 1996”.</li> <li>Then save it as a PNG file, to be read by an image editor such as <a href="/wiki/GNU_Image_Manipulation_Program" class="mw-redirect" title="GNU Image Manipulation Program">GIMP</a> or <a href="/wiki/IrfanView" title="IrfanView">IrfanView</a> (see below for details).</li></ul> <p>The ACS settings are as follows: </p> <ul><li>Chain angle: 120 degrees</li> <li>Bond spacing: 18% of length</li> <li>Bond length: 0.508 cm (14.4 pt)</li> <li>Bold width: 0.071 cm (2 pt)</li> <li>Line width: 0.021 cm (0.6 pt)</li> <li>Margin width: 0.056 cm (1.6 pt)</li> <li>Hash spacing: 0.088 cm (2.5 pt)</li> <li>Captions: Arial 10 pt</li> <li>Atom labels: Arial 10 pt</li> <li>Bond angles and length: “fixed” is recommended</li></ul> <p>Also recommended: For minus symbols on atoms, change the font for the minus symbol to “Symbol” for clarity. </p> <div class="mw-heading mw-heading3"><h3 id="Drawing_in_MarvinSketch" data-mw-thread-id="h-Drawing_in_MarvinSketch-Suggested_molecule_editor_settings"><span data-mw-comment-start="" id="h-Drawing_in_MarvinSketch-Suggested_molecule_editor_settings"></span>Drawing in MarvinSketch<span data-mw-comment-end="h-Drawing_in_MarvinSketch-Suggested_molecule_editor_settings"></span></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=8" title="Edit section: Drawing in MarvinSketch"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The following two changes in font may be performed by going to <i>File → Document Style</i>) </p> <ul><li>Font: Arial</li> <li>Font scale: 18</li> <li>Carbon labels: Never (which may be done by going to <i>Edit → Preferences → Structure</i>)</li> <li>View → Colors: Monochrome</li></ul> <p>The following three may be performed by going to <i>Edit → Preferences → Display</i>: </p> <ul><li>Double bond spacing: 0.18</li> <li>Wireframe bond thickness: 0.06</li> <li>Circled charge labels font: Arial</li></ul> <p>Whereas this last one may be performed by going to <i>Edit → Preferences → Bonds</i> </p> <ul><li>Down wedge orientation: Points Upward (Daylight)</li></ul> <p>Stereocenter display may be enabled by choosing <i>View → Stereo → R/S Labels: All</i>. </p> <div class="mw-heading mw-heading3"><h3 id="Drawing_with_WinDrawChem/XDrawChem" data-mw-thread-id="h-Drawing_with_WinDrawChem/XDrawChem-Suggested_molecule_editor_settings"><span id="Drawing_with_WinDrawChem.2FXDrawChem"></span><span data-mw-comment-start="" id="h-Drawing_with_WinDrawChem/XDrawChem-Suggested_molecule_editor_settings"></span>Drawing with WinDrawChem/XDrawChem<span data-mw-comment-end="h-Drawing_with_WinDrawChem/XDrawChem-Suggested_molecule_editor_settings"></span></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=9" title="Edit section: Drawing with WinDrawChem/XDrawChem"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>There is a free, open source program called WinDrawChem (the Windows version of <a href="/wiki/XDrawChem" title="XDrawChem">XDrawChem</a>) that appears to work well. <a rel="nofollow" class="external text" href="http://xdrawchem.sourceforge.net/windrawchem/">Link</a>. <a href="/wiki/Unix-like" title="Unix-like">Unix-like</a> users should follow the XDrawChem article link. </p><p>The configuration is extremely limited and post-processing is likely required. The only useful thing in "Format → Drawing settings..." is "Double bond spacing", which should be set to 18% of bond length, i.e. 5 pixels (integers only!) for the default 25-pixel bonds. Actual pixel sizes don't matter considering we will be doing an SVG report. </p> <div class="mw-heading mw-heading3"><h3 id="Drawing_in_BKChem" data-mw-thread-id="h-Drawing_in_BKChem-Suggested_molecule_editor_settings"><span data-mw-comment-start="" id="h-Drawing_in_BKChem-Suggested_molecule_editor_settings"></span>Drawing in BKChem<span data-mw-comment-end="h-Drawing_in_BKChem-Suggested_molecule_editor_settings"></span></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=10" title="Edit section: Drawing in BKChem"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>There is a free, open source program called <a href="/w/index.php?title=BKchem&action=edit&redlink=1" class="new" title="BKchem (page does not exist)">BKchem</a> (<a rel="nofollow" class="external text" href="https://bkchem.zirael.org">link</a>). You can save the following configuration files to <tt>~/.bkchem</tt> under Linux or <tt>C:\Documents and Settings\{username}\application data\bkchem</tt> (<a href="/wiki/Windows_XP" title="Windows XP">XP</a>) or <tt>C:\Users\{username}\application data\bkchem</tt> (<a href="/wiki/Windows_Vista" title="Windows Vista">Vista</a> / <a href="/wiki/Windows_7" title="Windows 7">Windows 7</a>) to get configuration according to Wikipedia's Manual of Style. It should work on any system with <a href="/wiki/Python_2" class="mw-redirect" title="Python 2">Python 2</a> and Tcl/Tk. </p><p>standard.cdml: </p> <div class="mw-highlight mw-highlight-lang-xml mw-content-ltr" dir="ltr"><pre><span></span><span class="cp"><?xml version="1.0" ?></span> <span class="nt"><cdml</span><span class="w"> </span><span class="na">version=</span><span class="s">"0.15"</span><span class="w"> </span><span class="na">xmlns=</span><span class="s">"http://www.freesoftware.fsf.org/bkchem/cdml"</span><span class="nt">></span> <span class="w"> </span><span class="nt"><info></span> <span class="w"> </span><span class="nt"><author_program</span><span class="w"> </span><span class="na">version=</span><span class="s">"0.12.2"</span><span class="nt">></span>BKchem<span class="nt"></author_program></span> <span class="w"> </span><span class="nt"></info></span> <span class="w"> </span><span class="nt"><standard</span><span class="w"> </span><span class="na">area_color=</span><span class="s">""</span><span class="w"> </span><span class="na">font_family=</span><span class="s">"Arial"</span><span class="w"> </span><span class="na">font_size=</span><span class="s">"24"</span><span class="w"> </span><span class="na">line_color=</span><span class="s">"#000"</span><span class="w"> </span><span class="na">line_width=</span><span class="s">"0.06cm"</span><span class="w"> </span><span class="na">paper_crop_margin=</span><span class="s">"5"</span><span class="w"> </span><span class="na">paper_crop_svg=</span><span class="s">"1"</span><span class="w"> </span><span class="na">paper_orientation=</span><span class="s">"portrait"</span><span class="w"> </span><span class="na">paper_type=</span><span class="s">"Legal"</span><span class="nt">></span> <span class="w"> </span><span class="nt"><bond</span><span class="w"> </span><span class="na">double-ratio=</span><span class="s">"0.85"</span><span class="w"> </span><span class="na">length=</span><span class="s">"1.4cm"</span><span class="w"> </span><span class="na">wedge-width=</span><span class="s">"0.18cm"</span><span class="w"> </span><span class="na">width=</span><span class="s">"0.21cm"</span><span class="nt">/></span> <span class="w"> </span><span class="nt"><arrow</span><span class="w"> </span><span class="na">length=</span><span class="s">"1.6cm"</span><span class="nt">/></span> <span class="w"> </span><span class="nt"></standard></span> <span class="nt"></cdml></span> </pre></div> <p>prefs.xml : </p> <div class="mw-highlight mw-highlight-lang-xml mw-content-ltr" dir="ltr"><pre><span></span><span class="cp"><?xml version="1.0" ?></span> <span class="w"> </span><span class="nt"><bkchem-prefs></span> <span class="w"> </span><span class="nt"><lang</span><span class="w"> </span><span class="na">type=</span><span class="s">"StringType"</span><span class="nt">></span>en<span class="nt"></lang></span> <span class="w"> </span><span class="nt"><geometry</span><span class="w"> </span><span class="na">type=</span><span class="s">"StringType"</span><span class="nt">></span>1016x522+4+27<span class="nt"></geometry></span> <span class="w"> </span><span class="nt"><recent-file1</span><span class="w"> </span><span class="na">type=</span><span class="s">"StringType"</span><span class="nt">></recent-file1></span> <span class="w"> </span><span class="nt"><recent-file2</span><span class="w"> </span><span class="na">type=</span><span class="s">"StringType"</span><span class="nt">></recent-file2></span> <span class="w"> </span><span class="nt"><use_real_minus</span><span class="w"> </span><span class="na">type=</span><span class="s">"IntType"</span><span class="nt">></span>0<span class="nt"></use_real_minus></span> <span class="w"> </span><span class="nt"><default-dir</span><span class="w"> </span><span class="na">type=</span><span class="s">"StringType"</span><span class="nt">></span>~<span class="nt"></default-dir></span> <span class="w"> </span><span class="nt"></bkchem-prefs></span> </pre></div> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="3D_Models" data-mw-thread-id="h-3D_Models"><span data-mw-comment-start="" id="h-3D_Models"></span>3D Models<span data-mw-comment-end="h-3D_Models"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=11" title="Edit section: 3D Models"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="CORINA_online" data-mw-thread-id="h-CORINA_online-3D_Models"><span data-mw-comment-start="" id="h-CORINA_online-3D_Models"></span>CORINA online<span data-mw-comment-end="h-CORINA_online-3D_Models"></span></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=12" title="Edit section: CORINA online"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a rel="nofollow" class="external text" href="http://www.molecular-networks.com/online_demos/corina_demo">CORINA online</a> is an easy to handle 3D-model generator of molecules, with the objective to execute the structural determination within a particular low time investment. This advantage is bought by a divergence from the ideal geometry. For instance, the program works with presets. To which extent these divergences are tolerable depends on the individual case and on quality demands. CORINA is not “foolproof”. Pseudochirality centers may turn out as pitfalls (e.g. amines that are chiral in protonated form). These specifics are to be considered in the <a href="/wiki/SMILES" class="mw-redirect" title="SMILES">SMILES</a> code, i.e. the correct relative energy minimum is to be manually assured. </p> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Generating_PNG_files" data-mw-thread-id="h-Generating_PNG_files"><span data-mw-comment-start="" id="h-Generating_PNG_files"></span>Generating PNG files<span data-mw-comment-end="h-Generating_PNG_files"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=13" title="Edit section: Generating PNG files"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Most molecule editors cannot produce .PNG images directly with the requirements outlined above. The image processing step also allows a canvas (margin) to be added (this is usually absent from the molecule editor output). </p> <dl><dd><ul><li>Save as: TIFF black/white bitmap with a resolution of 720 dpi (small molecules) to 240 dpi (large molecules) (in ChemDraw under the Options button in the Save as TIFF dialog).</li></ul> <dl><dd><b>ChemDraw / ChemBioDraw 11</b> (2007) cannot save black and white TIFF images. Therefore, save as a 1200 dpi greyscale TIFF image and decrease the color depth to 2 bit (black and white) during image processing.</dd></dl></dd> <dd>Image processing (Photoshop or Irfan view): <ul><li>Add canvas of about 5% to each side (test it, usually around 30 pixels) (Photoshop: Image:Canvas Size, relative, 10% width, 10% height)</li> <li>Save as a PNG black/white bitmap (color depth: 2) with transparent background.</li></ul></dd></dl> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Generating_SVG_files" data-mw-thread-id="h-Generating_SVG_files"><span data-mw-comment-start="" id="h-Generating_SVG_files"></span>Generating SVG files<span data-mw-comment-end="h-Generating_SVG_files"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=14" title="Edit section: Generating SVG files"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Scalable_Vector_Graphics" class="mw-redirect" title="Scalable Vector Graphics">SVG</a> files are preferred, because they are smaller in filesize, can generate high quality images for printing and are easier to translate if text is added to mechanism. </p> <div class="mw-heading mw-heading3"><h3 id="Using_ChemDraw_12_for_Windows" data-mw-thread-id="h-Using_ChemDraw_12_for_Windows-Generating_SVG_files"><span data-mw-comment-start="" id="h-Using_ChemDraw_12_for_Windows-Generating_SVG_files"></span>Using <a href="/wiki/ChemDraw" title="ChemDraw">ChemDraw</a> 12 for Windows<span data-mw-comment-end="h-Using_ChemDraw_12_for_Windows-Generating_SVG_files"></span></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=15" title="Edit section: Using ChemDraw 12 for Windows"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Draw the structure in ChemDraw 12 or later</li> <li>Go to File → Save As</li> <li>Choose Scalable Vector Graphics (*.svg) as the save as format.</li></ul> <p><small>ChemDraw exports svgs with a white background. You may use the vbs script at <a href="/wiki/User:Smallman12q/Scripts/Transperify" title="User:Smallman12q/Scripts/Transperify">User:Smallman12q/Scripts/Transperify</a> to make the background transparent. Another option is to open the file with Inkscape, right-click on the structure and select "Ungroup", then click anywhere on the white background and hit delete, then save again.</small> </p> <div class="mw-heading mw-heading3"><h3 id="Using_ChemDraw_12_for_Mac" data-mw-thread-id="h-Using_ChemDraw_12_for_Mac-Generating_SVG_files"><span data-mw-comment-start="" id="h-Using_ChemDraw_12_for_Mac-Generating_SVG_files"></span>Using <a href="/wiki/ChemDraw" title="ChemDraw">ChemDraw</a> 12 for Mac<span data-mw-comment-end="h-Using_ChemDraw_12_for_Mac-Generating_SVG_files"></span></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=16" title="Edit section: Using ChemDraw 12 for Mac"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Draw the structure in ChemDraw 12 or later</li> <li>Go to File → Save As</li> <li>Choose PDF as the save as format</li> <li>Upload the resulting PDF to the Texterity <a rel="nofollow" class="external text" href="http://freesvg.texterity.com:90/">FreeSVG</a> converter and you should end up with a very light SVG.</li> <li>Alternative free SVG converter: <a rel="nofollow" class="external text" href="http://image.online-convert.com/convert-to-svg">Online SVG converter</a>.</li></ul> <div class="mw-heading mw-heading3"><h3 id="Using_MarvinSketch" data-mw-thread-id="h-Using_MarvinSketch-Generating_SVG_files"><span data-mw-comment-start="" id="h-Using_MarvinSketch-Generating_SVG_files"></span>Using MarvinSketch<span data-mw-comment-end="h-Using_MarvinSketch-Generating_SVG_files"></span></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=17" title="Edit section: Using MarvinSketch"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Click <i>File → Export to Image</i>.</li> <li>Change the filename extension to “.svg” or choose the file type <i>Scalable Vector Graphics / SVG (*.svg *.svgz)</i>, and click <i>Save</i>.</li> <li>Set the <i>Scale</i> value to 112.</li> <li>Check the <i>Use Alpha Channel</i> box and, finally, click <i>Save</i>.</li></ul> <p>There tends to be an unreasonably large margin left around the diagram's extents, so it is often a good idea to crop the image in a vector program such as Inkscape before uploading it. Leave a small margin of 1.6 pt. </p> <div class="mw-heading mw-heading3"><h3 id="Using_Inkscape" data-mw-thread-id="h-Using_Inkscape-Generating_SVG_files"><span data-mw-comment-start="" id="h-Using_Inkscape-Generating_SVG_files"></span>Using <a href="/wiki/Inkscape" title="Inkscape">Inkscape</a><span data-mw-comment-end="h-Using_Inkscape-Generating_SVG_files"></span></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=18" title="Edit section: Using Inkscape"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>This method works only if your <a href="/wiki/Molecule_editor" title="Molecule editor">molecule editor</a> is able to export files in <a href="/wiki/Windows_Metafile" title="Windows Metafile">Windows Metafile</a> format. For example, <a href="/wiki/ChemDraw" title="ChemDraw">ChemDraw</a> supports this, as does ChemSketch and BIOVIA Draw (<i>.emf</i> is preferable for the latter). </p> <ul><li>Draw the structure in your molecule editor, and save it as a Windows Metafile (<i>.wmf</i>), Enhanced Metafile (<i>.emf</i>), or Encapsulated Postscript (<i>.eps</i>).</li> <li>Open the saved file in Inkscape.</li> <li>Resize the picture about 400%, then click to File→Document Properties→Fit page to selection.</li> <li>Select the molecule and click Path→Object to path. (to workaround <a href="https://commons.wikimedia.org/wiki/librsvg_bugs" class="extiw" title="commons:librsvg bugs">commons:librsvg bugs</a> with fonts)</li> <li>Click File→Save as to save file as Plain SVG.</li></ul> <div class="mw-heading mw-heading3"><h3 id="Using_Scribus" data-mw-thread-id="h-Using_Scribus-Generating_SVG_files"><span data-mw-comment-start="" id="h-Using_Scribus-Generating_SVG_files"></span>Using <a href="/wiki/Scribus" title="Scribus">Scribus</a><span data-mw-comment-end="h-Using_Scribus-Generating_SVG_files"></span></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=19" title="Edit section: Using Scribus"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Alternative (but little more complex) way to generate high quality and small size SVG files. One needs to download and install both Scribus and <a href="/wiki/Ghostscript" title="Ghostscript">Ghostscript</a> to archieve EPS to SVG conversion. </p> <ul><li>Draw the structure in your molecule editor (ideally change the settings to give a molecule twice the size as the JACS standard or change the size to 200% before next step), and save it as an <a href="/wiki/Encapsulated_PostScript" title="Encapsulated PostScript">Encapsulated PostScript</a> file (.eps) - many of the Apple print drivers (an Apple printer is not required) that print to a PostScript printer can be set to EPS in the print dialog options, thus printing to a file generates an suitable EPS file (HP printers with PS in the name e.g. "HP LaserJet 2300 Series PS" also work - ideal for Windows 7 where Apple drivers are hard to find)</li> <li>Open the PostScript file in Scribus. Note the image size and set the paper size to about 10px larger than the largest dimension. <ul><li>NB:SymyxDraw will usually add a full page rectangle to the drawing - ungroup, select rectangle and delete, then select all and re-group structure.</li></ul></li> <li>Go to File → Export → Save page as SVG.</li></ul> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Uploading_and_copyright" data-mw-thread-id="h-Uploading_and_copyright"><span data-mw-comment-start="" id="h-Uploading_and_copyright"></span>Uploading and copyright<span data-mw-comment-end="h-Uploading_and_copyright"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=20" title="Edit section: Uploading and copyright"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Please upload images to <a href="/wiki/Wikimedia_Commons" title="Wikimedia Commons">Wikimedia Commons</a> and <b>not to the English Wikipedia</b>. This enables images to be used in other Wikipedia languages and other Wikimedia projects and makes updating images much easier, it also saves someone else having to move the structure to Commons later. It is also simpler to find images in the Commons category structure compared to Wikipedia. To upload images to the Commons, you must be a registered user there. Due to the <a href="/wiki/Wikipedia:SUL" class="mw-redirect" title="Wikipedia:SUL">single user login</a>, you might already have an account on Commons (<a href="/wiki/Special:MergeAccount" title="Special:MergeAccount">check here</a>). </p><p>As usual, <b>uploaded images must have a correct copyright tag:</b> please add <span class="nowrap">{{</span><a href="/wiki/Template:PD-chem" title="Template:PD-chem">PD-chem</a><span class="nowrap">}}</span> - this will add the text <i>This image of a simple structural formula is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship</i>. Images released under “non-commercial use only” licences are not accepted and will be deleted without warning, as will images without a tag. </p><p>The easiest way is to use <b><a href="https://commons.wikimedia.org/wiki/Commons:Upload/Chemistry" class="extiw" title="commons:Commons:Upload/Chemistry">this pre-filled upload form</a></b>. Please complete the form and one or more specific categories (normally subcategories of <a href="https://commons.wikimedia.org/wiki/Category:Chemical_compounds" class="extiw" title="commons:Category:Chemical compounds">Category:Chemical compounds</a>). </p><p>Alternative method: </p> <ul><li>Go to the <a class="external text" href="https://commons.wikimedia.org/w/index.php?title=Special:Upload&uploadformstyle=basic">upload page</a> (you may want to bookmark this)</li> <li>Paste this text to the summary template:</li></ul> <dl><dd>For ChemDraw:</dd></dl> <pre>{{Information | Description= {{en|Chemical structure of [[:en:...|]]}} | Source= {{Own}} | Date= 2024-11-23 | Author= ~~~ | Permission= {{PD-chem}} | other_versions= }} == Comments == High-resolution black/white .PNG made with [[:en:ChemDraw|ChemDraw]] and [[:en:IrfanView|IrfanView]] — see [[:en:Wikipedia:Manual of Style (chemistry)/Structure drawing|WikiProject Chemistry - structure drawing]] for detailed instructions. Please drop me a note if you need the source file. [[Category:Chemical structures]] </pre> <dl><dd>For BKchem:</dd></dl> <pre>{{Information | Description= {{en|Chemical structure of [[:en:...|]]}} | Source= {{Own}} | Date= 2024-11-23 | Author= ~~~ | Permission= {{PD-chem}} | other_versions= }} == Comments == CD-SVG file made with [[:en:BKchem|]] — see [[:en:Wikipedia:Manual of Style (chemistry)/Structure drawing|WikiProject Chemistry - structure drawing]] for detailed instructions. [[Category:Chemical structures]] </pre> <ul><li>Replace the “...” with the Wikipedia article name and your username, respectively</li> <li>The date is already set to the current date</li> <li>Browse to your file and select it. Optionally, change the final image name in the box below</li> <li>Do not select a licensing from the upload form — the tags are already in the pasted text</li> <li>Upload the file</li> <li>Change your structure to the most specific subcategory (or subcategories) of <a href="https://commons.wikimedia.org/wiki/Category:Chemical_compounds" class="extiw" title="commons:Category:Chemical compounds">Category:Chemical compounds</a></li></ul> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Templates" data-mw-thread-id="h-Templates"><span data-mw-comment-start="" id="h-Templates"></span>Templates<span data-mw-comment-end="h-Templates"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=21" title="Edit section: Templates"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The following templates can be used on Wikipedia and <a href="/wiki/Wikimedia_Commons" title="Wikimedia Commons">Commons</a> to mark wrong or poor chemical structures: </p> <table width="100%"> <tbody><tr> <td>Wikipedia: <a href="/wiki/Template:Disputed_chem" title="Template:Disputed chem">{{Disputed chem|reason}}</a> <p>Commons: <a href="https://commons.wikimedia.org/wiki/Template:Disputed_chem" class="extiw" title="commons:Template:Disputed chem">{{Disputed chem|reason}}</a> </p> </td> <td><style data-mw-deduplicate="TemplateStyles:r1237879490">.mw-parser-output .imbox{margin:4px 0;border-collapse:collapse;border:3px solid #36c;background-color:var(--background-color-interactive-subtle,#f8f9fa);box-sizing:border-box}.mw-parser-output .imbox .mbox-text .imbox{margin:0 -0.5em;display:block}.mw-parser-output .imbox-speedy{border:3px solid #b32424;background-color:#fee7e6}.mw-parser-output .imbox-delete{border:3px solid #b32424}.mw-parser-output .imbox-content{border:3px solid #f28500}.mw-parser-output .imbox-style{border:3px solid #fc3}.mw-parser-output .imbox-move{border:3px solid #9932cc}.mw-parser-output .imbox-protection{border:3px solid #a2a9b1}.mw-parser-output .imbox-license{border:3px solid #88a}.mw-parser-output .imbox-featured{border:3px solid #cba135}.mw-parser-output .imbox .mbox-text{border:none;padding:0.25em 0.9em;width:100%}.mw-parser-output .imbox .mbox-image{border:none;padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .imbox .mbox-imageright{border:none;padding:2px 0.9em 2px 0;text-align:center}.mw-parser-output .imbox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .imbox .mbox-invalid-type{text-align:center}@media(min-width:720px){.mw-parser-output .imbox{margin:4px 10%}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .imbox-speedy{background-color:#310402}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .imbox-speedy{background-color:#310402}}</style><table class="plainlinks imbox imbox-content" role="presentation"><tbody><tr><td class="mbox-image"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/40px-Ambox_important.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/60px-Ambox_important.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/80px-Ambox_important.svg.png 2x" data-file-width="40" data-file-height="40"/></span></span></td><td class="mbox-text">This chemical structure or diagram's <b>factual accuracy is <a href="/wiki/Wikipedia:Accuracy_dispute" title="Wikipedia:Accuracy dispute">disputed</a>.</b> <div class="plainlinks" style="font-size: smaller; text-align: right; vertical-align: bottom;"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&diff=cur">Page last edited</a> <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=purge">314 days ago</a></div> <div style="margin: 0.5em 0.5em 0.5em 2em;"><i>reason</i>.</div> Please discuss the issue on this diagram's <a href="/wiki/Wikipedia_talk:Manual_of_Style/Chemistry/Structure_drawing" class="mw-redirect" title="Wikipedia talk:Manual of Style/Chemistry/Structure drawing">talk page</a>.<br/> <i>See also: <a href="/wiki/Wikipedia:WikiProject_Chemistry/Structure_drawing" class="mw-redirect" title="Wikipedia:WikiProject Chemistry/Structure drawing">Wikipedia structure drawing guide</a></i>.<div style="font-size: x-small; margin: 0.75em 0 0.5em 0;">Usage: {{<a href="/wiki/Template:Disputed_chem" title="Template:Disputed chem">Disputed chem</a>|why}} – All: <a href="/wiki/Category:Disputed_chemical_diagrams" title="Category:Disputed chemical diagrams">Category:Disputed chemical diagrams</a></div></td></tr></tbody></table> </td></tr> <tr> <td>Wikipedia: <a href="/wiki/Template:Low_quality_chem" title="Template:Low quality chem">{{Low quality chem|reason}}</a> <p>Commons: <a href="https://commons.wikimedia.org/wiki/Template:Low_quality_chem" class="extiw" title="commons:Template:Low quality chem">{{Low quality chem|reason}}</a> </p> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1237879490"><table class="box-Low_quality_chem plainlinks imbox imbox-style" role="presentation"><tbody><tr><td class="mbox-image"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/f/f2/Edit-clear.svg/40px-Edit-clear.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/f/f2/Edit-clear.svg/60px-Edit-clear.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/f/f2/Edit-clear.svg/80px-Edit-clear.svg.png 2x" data-file-width="48" data-file-height="48"/></span></span></td><td class="mbox-text"><b>The quality of this chemical structure is disputed.</b> <div class="plainlinks" style="font-size: smaller; text-align: right; vertical-align: bottom;"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&diff=cur">Page last edited</a> <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=purge">314 days ago</a></div> <div style="margin: 0.5em 0.5em 0.5em 2em;"><i>reason</i>.</div> Please discuss the issue on this diagram's <a href="/wiki/Wikipedia_talk:Manual_of_Style/Chemistry/Structure_drawing" class="mw-redirect" title="Wikipedia talk:Manual of Style/Chemistry/Structure drawing">talk page</a>.<br/> <i>See also: <a href="/wiki/Wikipedia:WikiProject_Chemistry/Structure_drawing" class="mw-redirect" title="Wikipedia:WikiProject Chemistry/Structure drawing">Wikipedia structure drawing guide</a></i>.<div style="font-size: x-small; margin: 0.75em 0 0.5em 0;">Usage: {{<a href="/wiki/Template:Low_quality_chem" title="Template:Low quality chem">Template:Low quality chem</a>|why}} – All: <a href="/wiki/Category:Chemical_structure_quality_issues" title="Category:Chemical structure quality issues">Category:Chemical structure quality issues</a></div></td></tr></tbody></table> </td></tr> </tbody></table> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="See_also" data-mw-thread-id="h-See_also"><span data-mw-comment-start="" id="h-See_also"></span>See also<span data-mw-comment-end="h-See_also"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=22" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Wikipedia:Preparing_images_for_upload" title="Wikipedia:Preparing images for upload">Wikipedia:Preparing images for upload</a></li> <li><a href="/wiki/User:Benjah-bmm27/MakingMolecules" title="User:Benjah-bmm27/MakingMolecules">User:Benjah-bmm27/MakingMolecules</a></li></ul> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="External_links" data-mw-thread-id="h-External_links"><span data-mw-comment-start="" id="h-External_links"></span>External links<span data-mw-comment-end="h-External_links"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=23" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.iupac.org/publications/pac/2006/pdf/7810x1897.pdf">Graphical Representation of Stereochemical Configuration</a> <i>IUPAC Recommendations 2006</i>. A guide to drawing chemical structures. Covers topics such as the use of wedged and wavy bonds, bond angles, and perspective.</li></ul> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Notes" data-mw-thread-id="h-Notes"><span data-mw-comment-start="" id="h-Notes"></span>Notes<span data-mw-comment-end="h-Notes"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&action=edit&section=24" title="Edit section: Notes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&oldid=1195749314">https://en.wikipedia.org/w/index.php?title=Wikipedia:Manual_of_Style/Chemistry/Structure_drawing&oldid=1195749314</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:Wikipedia_supplemental_pages" title="Category:Wikipedia supplemental pages">Wikipedia supplemental pages</a></li><li><a href="/wiki/Category:Chemical_structure_quality_issues" title="Category:Chemical structure quality issues">Chemical structure quality issues</a></li><li><a href="/wiki/Category:Wikipedia_Manual_of_Style_(chemistry)" title="Category:Wikipedia Manual of Style (chemistry)">Wikipedia Manual of Style (chemistry)</a></li><li><a href="/wiki/Category:Wikipedia_essays_and_information_pages_about_the_Manual_of_Style" title="Category:Wikipedia essays and information pages about the Manual of Style">Wikipedia essays and information pages about the Manual of Style</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 15 January 2024, at 02:18<span class="anonymous-show"> (UTC)</span>.</li> <li id="footer-info-copyright">Text is available under the <a href="/wiki/Wikipedia:Text_of_the_Creative_Commons_Attribution-ShareAlike_4.0_International_License" title="Wikipedia:Text of the Creative Commons Attribution-ShareAlike 4.0 International License">Creative Commons Attribution-ShareAlike 4.0 License</a>; additional terms may apply. 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