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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:137528 term browser browse the term
Definition:A tricyclic diterpene with formula C20H32 which is produced by a diterpene cyclase gene expressed in an engineered Streptomyces host.
Synonyms:exact_synonym: (1S,3aS,7aS,10aR)-1,5,8,8,10a-pentamethyl-2,3,3a,4,7,7a,8,9,10,10a-decahydro-1H-dicyclopenta[a,d][9]annulene
 related_synonym: Formula=C20H32;   InChI=1S/C20H32/c1-14-6-9-18-19(3,4)10-11-20(18,5)13-17-15(2)7-8-16(17)12-14/h6,13,15-16,18H,7-12H2,1-5H3/b14-6-,17-13-/t15-,16-,18-,20+/m0/s1;   InChIKey=JZGOFJIAHJJJDK-ICZJPRMTSA-N;   SMILES=[H][C@@]12CC[C@H](C)\\C1=C\\[C@@]1(C)CCC(C)(C)[C@]1([H])C\\C=C(C)/C2
 xref: MetaCyc:CPD-20078;   PMID:25605043;   PMID:27189124;   PMID:28146322;   Reaxys:30940896

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  CHEBI ontology 19810
    chemical entity 19810
      atom 19808
        nonmetal atom 19683
          carbon atom 19588
            organic molecular entity 19588
              isoprenoid 9609
                terpene 9609
                  diterpene 8430
                    tsukubadiene 0
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  CHEBI ontology 19810
    subatomic particle 19808
      composite particle 19808
        hadron 19808
          baryon 19808
            nucleon 19808
              atomic nucleus 19808
                atom 19808
                  main group element atom 19696
                    main group molecular entity 19696
                      s-block molecular entity 19456
                        hydrogen molecular entity 19447
                          hydrides 18703
                            organic hydride 18265
                              organic fundamental parent 18265
                                hydrocarbon 17986
                                  olefin 7191
                                    cyclic olefin 106
                                      polycyclic olefin 1
                                        tsukubadiene 0
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