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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:auxin a
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Accession:CHEBI:142254 term browser browse the term
Definition:A carbocyclic compound that is 3,5-di-sec-butylcyclopentene which is substituted by a 4-carboxy-1,3,4-trihydroxybutyl group at position 1.
Synonyms:exact_synonym: 4-deoxy-5-C-(3,5-di-sec-butylcyclopent-1-en-1-yl)pentonic acid
 related_synonym: 5-(2,4-di-sec-butyl-cyclopent-5-enyl)-2,3,5-trihydroxy-valeric acid;   5-(3,5-di-sec-butylcyclopent-1-enyl)-2,3,5-trihydroxyvaleric acid;   5-C-(3,5-bis(1-methylpropyl)-1-cyclopenten-1-yl)-4-deoxy-pentonic acid;   Formula=C18H32O5;   InChI=1S/C18H32O5/c1-5-10(3)12-7-13(11(4)6-2)14(8-12)15(19)9-16(20)17(21)18(22)23/h8,10-13,15-17,19-21H,5-7,9H2,1-4H3,(H,22,23);   InChIKey=RKOUCPMGBBKLNK-UHFFFAOYSA-N;   SMILES=CCC(C)C1CC(C(C)CC)C(=C1)C(CC(C(C(=O)O)O)O)O;   auxen triolic acid;   auxentriolic acid
 xref: CAS:491-14-5;   Chemspider:83749;   FooDB:FDB017851;   HMDB:HMDB0038483;   Reaxys:3152986

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  CHEBI ontology 19853
    chemical entity 19853
      molecular entity 19851
        polyatomic entity 19765
          molecule 19600
            cyclic compound 19417
              homocyclic compound 18284
                carbocyclic compound 18284
                  auxin a 0
Path 2
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  CHEBI ontology 19853
    subatomic particle 19851
      composite particle 19851
        hadron 19851
          baryon 19851
            nucleon 19851
              atomic nucleus 19851
                atom 19851
                  main group element atom 19744
                    p-block element atom 19744
                      carbon group element atom 19650
                        carbon atom 19639
                          organic molecular entity 19639
                            organic group 18550
                              organic divalent group 18541
                                organodiyl group 18541
                                  carbonyl group 18447
                                    carbonyl compound 18447
                                      carboxylic acid 18125
                                        hydroxy carboxylic acid 3610
                                          hydroxy monocarboxylic acid 3610
                                            auxin a 0
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