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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.

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Accession:CHEBI:138302 term browser browse the term
Definition:A diterpene derived from labdane by dehydrogenation across the C(8)-C(17), C(12)-C(13) and C(14)-C(15) bonds.
Synonyms:exact_synonym: (4aS,5S,8aS)-1,1,4a-trimethyl-6-methylidene-5-[(2E)-3-methylpenta-2,4-dien-1-yl]decahydronaphthalene
 related_synonym: 5alpha,9beta,10alpha-labda-8(17),12E,14-triene;   8(17),12E,14-Labdatriene;   Formula=C20H32;   InChI=1S/C20H32/c1-7-15(2)9-11-17-16(3)10-12-18-19(4,5)13-8-14-20(17,18)6/h7,9,17-18H,1,3,8,10-14H2,2,4-6H3/b15-9+/t17-,18-,20+/m0/s1;   InChIKey=VJVMMXUPZGOBSN-DIUMXTPXSA-N;   SMILES=[C@H]1(C/C=C(\\C)/C=C)C(=C)CC[C@@]2([C@]1(C)CCCC2(C)C)[H]
 xref: CAS:5957-33-5;   KNApSAcK:C00022775;   MetaCyc:CPD-20450;   PMID:26814669;   Reaxys:2557623

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  CHEBI ontology 19816
    chemical entity 19816
      atom 19814
        nonmetal atom 19690
          carbon atom 19597
            organic molecular entity 19597
              isoprenoid 9607
                terpene 9607
                  diterpene 8431
                    (12E)-labda-8(17),12,14-triene 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19816
    subatomic particle 19814
      composite particle 19814
        hadron 19814
          baryon 19814
            nucleon 19814
              atomic nucleus 19814
                atom 19814
                  main group element atom 19702
                    main group molecular entity 19702
                      s-block molecular entity 19461
                        hydrogen molecular entity 19452
                          hydrides 18707
                            organic hydride 18269
                              organic fundamental parent 18269
                                hydrocarbon 17988
                                  terpene 9607
                                    diterpene 8431
                                      labdane 139
                                        (12E)-labda-8(17),12,14-triene 0
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.