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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC BY 3.0, For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.

Term:18-methylicosanoic acid
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Accession:CHEBI:84877 term browser browse the term
Definition:A methyl-branched fatty acid that is arachidic acid substituted by a methyl group at position 18.
Synonyms:related_synonym: 18-methylarachidic acid;   18-methyleicosanoic acid;   Anteisoheneicosanoic acid;   Formula=C21H42O2;   InChI=1S/C21H42O2/c1-3-20(2)18-16-14-12-10-8-6-4-5-7-9-11-13-15-17-19-21(22)23/h20H,3-19H2,1-2H3,(H,22,23);   InChIKey=WSRCOZWDQPJAQT-UHFFFAOYSA-N;   SMILES=CCC(C)CCCCCCCCCCCCCCCCC(O)=O
 xref: CAS:36332-93-1;   LIPID_MAPS_instance:LMFA01020018;   PMID:17718471;   PMID:2721159;   PMID:9519472;   Reaxys:1726967

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  CHEBI ontology 0
    role 0
      biological role 0
        biochemical role 0
          metabolite 0
            eukaryotic metabolite 0
              plant metabolite 0
                icosanoic acid 0
                  18-methylicosanoic acid 0
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  CHEBI ontology 0
    subatomic particle 0
      composite particle 0
        hadron 0
          baryon 0
            nucleon 0
              atomic nucleus 0
                atom 0
                  main group element atom 0
                    p-block element atom 0
                      carbon group element atom 0
                        carbon atom 0
                          organic molecular entity 0
                            organic group 0
                              organic divalent group 0
                                organodiyl group 0
                                  carbonyl group 0
                                    carbonyl compound 0
                                      carboxylic acid 0
                                        monocarboxylic acid 0
                                          fatty acid 0
                                            saturated fatty acid 0
                                              straight-chain saturated fatty acid 0
                                                icosanoic acid 0
                                                  18-methylicosanoic acid 0
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