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Chemical Entities of Biological Interest (ChEBI)
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} </style> <div class="grid_18"> <form action="/chebi/advancedSearchFT.do" method="get" name="searchFreeText" class="boxed-section"> <br/> Chemical Entities of Biological Interest (ChEBI) is a freely available dictionary of molecular entities focused on ‘small’ chemical compounds. <br/> <br/> <input type="text" name="searchString" size=50 maxlength="1000" title="Enter your search keywords here eg. oxygen."> <input type="submit" alt="Search Button" title="Search ChEBI" value="Search" class="submit"> <a href="https://docs.google.com/document/d/1_w-DwBdCCOh1gMeeP6yqGzcnkpbHYOa3AGSODe5epcg/edit#heading=h.tv5m9d9twt0e" target="_blank" title="Go the ChEBI help pages to learn more about 'Quick Search'." class="no-underline"> <span class="icon icon-common icon-info helpinfo"></span> </a> <br/><b>Search for <img src="images/goldenstar.gif"/><img src="images/goldenstar.gif"/><img src="images/goldenstar.gif"/> only</b> <input type="radio" name="queryBean.stars" value="3"> <b>All in ChEBI</b> <input type="radio" name="queryBean.stars" value="2" checked="checked"> <br/> <br/>Example: <a href="advancedSearchFT.do?searchString=iron*">iron*</a>, <a href="advancedSearchFT.do?searchString='InChI=1S/CH4O/c1-2/h2H,1H3'">InChI=1S/CH4O/c1-2/h2H,1H3</a>, <a href="advancedSearchFT.do?searchString=caffeine">caffeine</a> <br/><br/> <a href="/chebi/advancedSearchForward.do"> Advanced Search</a> | <a href="/chebi/aboutChebiForward.do"> About ChEBI</a> <br/> <br/> </form> <br/> <div class="grid_8 alpha"> <h3 class="icon icon-common icon-documentation"> Documentation</h3> <p class="wrapNoBorder"> <a href="https://docs.google.com/document/d/1_w-DwBdCCOh1gMeeP6yqGzcnkpbHYOa3AGSODe5epcg/" target="_blank"><b>User Manual</b></a> Learn more about the data fields in the ChEBI and data sources for ChEBI. If you are unable to access the online Google document, please use the <a href="https://ftp.ebi.ac.uk/pub/databases/chebi/manuals/">FTP link</a> to view our manuals. </p> <p class="wrapNoBorder"> <a href="http://www.ebi.ac.uk/training/online/course-list?field_course_subject_area_tid%5B%5D=11" target="_blank"><b>Train Online Tutorial</b></a> An online <a href="http://www.ebi.ac.uk/training/online/course/chebi-quick-tour" target="_blank"> quick tour</a> (0.5 h) and a more <a href="http://www.ebi.ac.uk/training/online/course/chebi-online-chemical-dictionary-small-molecules" target="_blank"> detailed tour</a> (1 h) covering much of the material in the User Manual can be found on the EBI Train Online site <a href="http://www.ebi.ac.uk/training/online/course-list?field_course_subject_area_tid%5B%5D=11" target="_blank"> here</a>. </p> <p class="wrapNoBorder"> <a href="statisticsForward.do"><b>Statistics</b></a> Graphs showing the growth of ChEBI, the numbers of curated, submitted and unchecked entries, the numbers of links to other resources and the sources of the information present in ChEBI </p> <p><a href="aboutChebiForward.do">Read more...</a></p> </div> <div class="grid_8 alpha"> <h3 class="icon icon-common icon-download-alt"> Downloads</h3> <p class="wrapNoBorder"> <a href="https://ftp.ebi.ac.uk/pub/databases/chebi/SDF/"><b>SDF files</b></a> ChEBI provides its chemical structures and additional data in structure-data file (SDF) format. </p> <p class="wrapNoBorder"> <a href="https://ftp.ebi.ac.uk/pub/databases/chebi/ontology/"><b>Ontology files</b></a> ChEBI ontology is provided in the W3C standard <a href="http://en.wikipedia.org/wiki/Web_Ontology_Language">Web Ontology Language (OWL)</a> and <a href="http://www.obofoundry.org">OBO</a> formats. </p> <p class="wrapNoBorder"> <a href="https://ftp.ebi.ac.uk/pub/databases/chebi/"><b>Database files</b></a> ChEBI is stored in a relational database and we currently provide the ChEBI tables in <a href="https://ftp.ebi.ac.uk/pub/databases/chebi/Flat_file_tab_delimited/">flat-file tab delimited format</a>, as an <a href="https://ftp.ebi.ac.uk/pub/databases/chebi/Oracle_dumps/">Oracle binary dumps</a> and a <a href="https://ftp.ebi.ac.uk/pub/databases/chebi/generic_dumps/">generic SQL dumps</a> for MySQL and PostgreSQL database. </p> <p><a href="downloadsForward.do">Read more...</a></p> </div> <div class="grid_8 alpha"> <h3 class="icon icon-common icon-globe" style="margin-left: -10px;"> News</h3> <div style="border:1px solid gainsboro; border-radius: 5px;"> <a class="twitter-timeline" data-lang="en" data-height="400" data-theme="light" href="https://twitter.com/chebit?ref_src=twsrc%5Etfw">Tweets by chebit</a> <script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script> </div> </div> </div> <div class="grid_6 alpha"> <h3 class="icon icon-common icon-graduation-cap" style="text-align: center;"> Entity of the month</h3> <p> <a href="/chebi/entityMonthForward.do"> <b> 1st October 2023 <br/> Caesium-137 </b> <br/> <br/> </a> <a href="/chebi/entityMonthForward.do"> <img src="/chebi/images/eom/196959.png" style="margin-left: auto;margin-right: auto;display: block; width: 250px;"/> </a> </p> <p class="wrapNoBorder"> On April 26, 1986, reactor 4 at the <a href="https://en.wikipedia.org/wiki/Chernobyl_Nuclear_Power_Plant" target="_blank">Chernobyl nuclear power plant</a> in <a href="https://en.wikipedia.org/wiki/Pripyat" target="_blank">Pripyat</a>, Ukraine suffered catastrophic <a href="https://en.wikipedia.org/wiki/Nuclear_meltdown" target="_blank">meltdown</a> and exploded, killing 2 workers and unleashing large amount of radiation across the European continent. In the 3 months that followed, 28 plant workers and first responders died from <a href="https://en.wikipedia.org/wiki/Acute_radiation_syndrome" target="_blank">acute radiation sickness</a>. Wildlife was also affected, and restrictions were put in place to prevent people from eating radioactively contaminated meat [1]. </p> <p><a href="/chebi/entityMonthForward.do"> Read more ... </a> </p> </div> </div> <div id="footer-elixir"> <a href="https://www.elixir-europe.org/platforms/data/core-data-resources" target="_blank" class="elixirUnlink"> <div class="elixirLogoWrap"> <img class="elixirLogo" src="https://ebi.emblstatic.net/web_guidelines/EBI-Framework/v1.3/images/logos/ELIXIR/elixir-cdr.gif" width="64px" height="64px"/> </div> <div class="elixirDescWrap"> <h3 class="elixirTitle"> ChEBI is part of the ELIXIR infrastructure </h3> <div class="elixirDesc"> <small> <span class="elixirDescSmall">This service is an Elixir Core Data Resource.</span> <span class="elixirLink"> Read more ...</span> </small> </div> </div> </a> </div> <div id="global-footer" class="grid_24 container_24"> <nav id="global-nav-expanded"> <div class="grid_4 alpha"><a href="http://www.ebi.ac.uk" title="EMBL-EBI"><img src="//www.ebi.ac.uk/web_guidelines/images/logos/EMBL-EBI/EMBL_EBI_Logo_black.png" alt="EMBL European Bioinformatics Institute"></a> <ul> <li class="first"><a href="//www.ebi.ac.uk/about/news">News</a></li> <li><a href="//www.ebi.ac.uk/about/our-impact">Our impact</a></li> <li><a href="//www.ebi.ac.uk/about/contact">Contact us</a></li> <li class="last"><a href="http://intranet.ebi.ac.uk">Intranet</a></li> </ul> </div> <div class="grid_4"><h3 class="services"><a href="//www.ebi.ac.uk/services">Services</a></h3> <ul> <li class="first"><a href="//www.ebi.ac.uk/services">By topic</a></li> <li><a href="//www.ebi.ac.uk/services/all">By name (A-Z)</a></li> <li><a href="//www.ebi.ac.uk/support">Help & Support</a></li> <li class="last"> <a href="https://www.ebi.ac.uk/long-term-data-preservation"> Long-term data preservation </a> </li> </ul> </div> <div class="grid_4"><h3 class="research"><a href="//www.ebi.ac.uk/research">Research</a></h3> <ul> <li class="first"><a href="//www.ebi.ac.uk/research">Overview</a></li> <li><a href="//www.ebi.ac.uk/research/publications">Publications</a></li> <li><a href="//www.ebi.ac.uk/research/groups">Research groups</a></li> <li class="last"><a href="//www.ebi.ac.uk/research/postdocs">Postdocs</a> & <a href="//www.ebi.ac.uk/research/eipp">PhDs</a></li> </ul> </div> <div class="grid_4"><h3 class="training"><a href="//www.ebi.ac.uk/training">Training</a></h3> <ul> <li class="first"><a href="//www.ebi.ac.uk/training">Overview</a></li> <li><a href="//www.ebi.ac.uk/training/handson">Train at EBI</a></li> <li><a href="//www.ebi.ac.uk/training/roadshow">Train outside EBI</a></li> <li><a href="//www.ebi.ac.uk/training/online">Train online</a></li> <li class="last"><a href="//www.ebi.ac.uk/training/contact-us">Contact organisers</a></li> </ul> </div> <div class="grid_4"><h3 class="industry"><a href="//www.ebi.ac.uk/industry">Industry</a></h3> <ul> <li class="first"><a href="//www.ebi.ac.uk/industry">Overview</a></li> <li><a href="//www.ebi.ac.uk/industry/private">Members Area</a></li> <li><a href="//www.ebi.ac.uk/industry/workshops">Workshops</a></li> <li><a href="//www.ebi.ac.uk/industry/sme-forum"><abbr title="Small Medium Enterprise">SME</abbr> Forum</a> </li> <li class="last"><a href="//www.ebi.ac.uk/industry/contact">Contact Industry programme</a></li> </ul> </div> <div class="grid_4 omega"><h3 class="about"><a href="//www.ebi.ac.uk/about">About us</a></h3> <ul> <li class="first"><a href="//www.ebi.ac.uk/about">Overview</a></li> <li><a href="//www.ebi.ac.uk/about/leadership">Leadership</a></li> <li><a href="//www.ebi.ac.uk/about/funding">Funding</a></li> <li><a href="//www.ebi.ac.uk/about/background">Background</a></li> <li><a href="//www.ebi.ac.uk/about/partnerships">Collaboration</a></li> <li><a href="//www.ebi.ac.uk/about/jobs" title="Jobs, postdocs, PhDs...">Jobs</a></li> <li><a href="//www.ebi.ac.uk/about/people">People & groups</a></li> <li><a href="//www.ebi.ac.uk/about/news">News</a></li> <li><a href="//www.ebi.ac.uk/about/events">Events</a></li> <li><a href="//www.ebi.ac.uk/about/travel">Visit us</a></li> <li class="last"><a href="//www.ebi.ac.uk/about/contact">Contact us</a></li> </ul> </div> </nav> <section id="ebi-footer-meta"><p class="address">EMBL-EBI, Wellcome Genome Campus, Hinxton, Cambridgeshire, CB10 1SD, UK +44 (0)1223 49 44 44</p> <p>Copyright 漏 EMBL-EBI 2018 | EBI is an outstation of the <a href="http://www.embl.org">European Molecular Biology Laboratory</a> | <a href="//www.ebi.ac.uk/about/terms-of-use">Terms of use</a></p></section> <script> var localFrameworkVersion = 'compliance'; 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