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Available in 52 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-52" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">52 leids</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A8%D9%88%D8%A8_%D9%83%D9%8A%D9%85" title="بوب كيم – Arabic" lang="ar" hreflang="ar" data-title="بوب كيم" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/PubChem" title="PubChem – Azerbaijani" lang="az" hreflang="az" data-title="PubChem" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-ba mw-list-item"><a href="https://ba.wikipedia.org/wiki/PubChem" title="PubChem – Bashkir" lang="ba" hreflang="ba" data-title="PubChem" data-language-autonym="Башҡортса" data-language-local-name="Bashkir" class="interlanguage-link-target"><span>Башҡортса</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/PubChem" title="PubChem – Belarusian" lang="be" hreflang="be" data-title="PubChem" data-language-autonym="Беларуская" data-language-local-name="Belarusian" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/PubChem" title="PubChem – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="PubChem" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/PubChem" title="PubChem – Bulgairien" lang="bg" hreflang="bg" data-title="PubChem" data-language-autonym="Български" data-language-local-name="Bulgairien" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%AA%E0%A6%BE%E0%A6%AC%E0%A6%95%E0%A7%87%E0%A6%AE" title="পাবকেম – Bangla" lang="bn" hreflang="bn" data-title="পাবকেম" data-language-autonym="বাংলা" data-language-local-name="Bangla" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/PubChem" title="PubChem – Bosnian" lang="bs" hreflang="bs" data-title="PubChem" data-language-autonym="Bosanski" data-language-local-name="Bosnian" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/PubChem" title="PubChem – Catalan" lang="ca" hreflang="ca" data-title="PubChem" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/PubChem" title="PubChem – Czech" lang="cs" hreflang="cs" data-title="PubChem" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/PubChem" title="PubChem – Dens" lang="da" hreflang="da" data-title="PubChem" data-language-autonym="Dansk" data-language-local-name="Dens" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/PubChem" title="PubChem – German" lang="de" hreflang="de" data-title="PubChem" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/PubChem" title="PubChem – Greek" lang="el" hreflang="el" data-title="PubChem" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/PubChem" title="PubChem – Inglis" lang="en" hreflang="en" data-title="PubChem" data-language-autonym="English" data-language-local-name="Inglis" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/PubChem" title="PubChem – Esperanto" lang="eo" hreflang="eo" data-title="PubChem" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/PubChem" title="PubChem – Spainish" lang="es" hreflang="es" data-title="PubChem" data-language-autonym="Español" data-language-local-name="Spainish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/PubChem" title="PubChem – Eastlands" lang="et" hreflang="et" data-title="PubChem" data-language-autonym="Eesti" data-language-local-name="Eastlands" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%BE%D8%A7%D8%A8%E2%80%8C%DA%A9%D9%85" title="پاب‌کم – Persian" lang="fa" hreflang="fa" data-title="پاب‌کم" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/PubChem" title="PubChem – Finnish" lang="fi" hreflang="fi" data-title="PubChem" data-language-autonym="Suomi" data-language-local-name="Finnish" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/PubChem" title="PubChem – French" lang="fr" hreflang="fr" data-title="PubChem" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/PubChem" title="PubChem – Northern Frisian" lang="frr" hreflang="frr" data-title="PubChem" data-language-autonym="Nordfriisk" data-language-local-name="Northern Frisian" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/PubChem" title="PubChem – Galician" lang="gl" hreflang="gl" data-title="PubChem" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/PubChem" title="PubChem – Ebrew" lang="he" hreflang="he" data-title="PubChem" data-language-autonym="עברית" data-language-local-name="Ebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/PubChem" title="PubChem – Croatian" lang="hr" hreflang="hr" data-title="PubChem" data-language-autonym="Hrvatski" data-language-local-name="Croatian" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/PubChem" title="PubChem – Hungarian" lang="hu" hreflang="hu" data-title="PubChem" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/PubChem" title="PubChem – Indonesian" lang="id" hreflang="id" data-title="PubChem" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/PubChem" title="PubChem – Italian" lang="it" hreflang="it" data-title="PubChem" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/PubChem" title="PubChem – Japanese" lang="ja" hreflang="ja" data-title="PubChem" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/PubChem" title="PubChem – Kazakh" lang="kk" hreflang="kk" data-title="PubChem" data-language-autonym="Қазақша" data-language-local-name="Kazakh" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/PubChem" title="PubChem – Korean" lang="ko" hreflang="ko" data-title="PubChem" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/PubChem" title="PubChem – Laitin" lang="la" hreflang="la" data-title="PubChem" data-language-autonym="Latina" data-language-local-name="Laitin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/PubChem" title="PubChem – Macedonian" lang="mk" hreflang="mk" data-title="PubChem" data-language-autonym="Македонски" data-language-local-name="Macedonian" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%AA%E0%B4%AC%E0%B5%8D%E2%80%8C%E0%B4%95%E0%B5%86%E0%B4%82" title="പബ്‌കെം – Malayalam" lang="ml" hreflang="ml" data-title="പബ്‌കെം" data-language-autonym="മലയാളം" data-language-local-name="Malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/PubChem" title="PubChem – Malay" lang="ms" hreflang="ms" data-title="PubChem" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/PubChem" title="PubChem – Dutch" lang="nl" hreflang="nl" data-title="PubChem" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/PubChem" title="PubChem – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="PubChem" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/PubChem" title="PubChem – Polls" lang="pl" hreflang="pl" data-title="PubChem" data-language-autonym="Polski" data-language-local-name="Polls" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/PubChem" title="PubChem – Portuguese" lang="pt" hreflang="pt" data-title="PubChem" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/PubChem" title="PubChem – Roumains" lang="ro" hreflang="ro" data-title="PubChem" data-language-autonym="Română" data-language-local-name="Roumains" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/PubChem" title="PubChem – Roushien" lang="ru" hreflang="ru" data-title="PubChem" data-language-autonym="Русский" data-language-local-name="Roushien" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/PubChem" title="PubChem – Serbo-Croatian" lang="sh" hreflang="sh" data-title="PubChem" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Serbo-Croatian" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/PubChem" title="PubChem – Slovak" lang="sk" hreflang="sk" data-title="PubChem" data-language-autonym="Slovenčina" data-language-local-name="Slovak" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/PubChem" title="PubChem – Slovein" lang="sl" hreflang="sl" data-title="PubChem" data-language-autonym="Slovenščina" data-language-local-name="Slovein" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/PubChem" title="PubChem – Serbian" lang="sr" hreflang="sr" data-title="PubChem" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Pubchem" title="Pubchem – Swaidish" lang="sv" hreflang="sv" data-title="Pubchem" data-language-autonym="Svenska" data-language-local-name="Swaidish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%AA%E0%AE%AA%E0%AF%8D%E0%AE%95%E0%AF%86%E0%AE%AE%E0%AF%8D" title="பப்கெம் – Tamil" lang="ta" hreflang="ta" data-title="பப்கெம்" data-language-autonym="தமிழ்" data-language-local-name="Tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%9C%E0%B8%B1%E0%B8%9A%E0%B9%80%E0%B8%84%E0%B8%A1" title="ผับเคม – Thai" lang="th" hreflang="th" data-title="ผับเคม" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/PubChem" title="PubChem – Tagalog" lang="tl" hreflang="tl" data-title="PubChem" data-language-autonym="Tagalog" data-language-local-name="Tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/PubChem" title="PubChem – Turkish" lang="tr" hreflang="tr" data-title="PubChem" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/PubChem" title="PubChem – Ukrainian" lang="uk" hreflang="uk" data-title="PubChem" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/PubChem" title="PubChem – Vietnamese" lang="vi" hreflang="vi" data-title="PubChem" data-language-autonym="Tiếng Việt" 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nowrap">Wabsteid</th><td><a rel="nofollow" class="external free" href="https://pubchem.ncbi.nlm.nih.gov/">https://pubchem.ncbi.nlm.nih.gov/</a></td></tr><tr><th scope="row" style="white-space: nowrap">Dounlaid URL</th><td><a rel="nofollow" class="external text" href="https://pubchem.ncbi.nlm.nih.gov/pc_fetch/pc_fetch-help.html">FTP</a></td></tr><tr><th colspan="2" style="text-align:center;background-color: lavender">Miscellaneous</th></tr><tr><th scope="row" style="white-space: nowrap"><a href="/w/index.php?title=Saftware_license&action=edit&redlink=1" class="new" title="Saftware license (page disna exeest)">License</a></th><td>Public domain</td></tr></tbody></table> <p><b>PubChem</b> is a <a href="/w/index.php?title=Database&action=edit&redlink=1" class="new" title="Database (page disna exeest)">database</a> o <a href="/wiki/Chemistry" class="mw-redirect" title="Chemistry">chemical</a> <a href="/wiki/Molecule" title="Molecule">molecules</a> an thair acteevities against biological 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