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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:139254 term browser browse the term
Definition:A retinoid anion that is the conjugate base of 9-cis-4-oxoretinoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3.
Synonyms:exact_synonym: (2E,4E,6Z,8E)-3,7-dimethyl-9-(2,6,6-trimethyl-3-oxocyclohex-1-en-1-yl)nona-2,4,6,8-tetraenoate
 related_synonym: (9cis)-4-oxoretinoate;   4-oxo-9-cis-retinoate(1-);   9-cis-4-ketoretinoate;   Formula=C20H25O3;   InChI=1S/C20H26O3/c1-14(7-6-8-15(2)13-19(22)23)9-10-17-16(3)18(21)11-12-20(17,4)5/h6-10,13H,11-12H2,1-5H3,(H,22,23)/p-1/b8-6+,10-9+,14-7-,15-13+;   InChIKey=GGCUJPCCTQNTJF-NAXRMXIQSA-M;   SMILES=C1C(C(=C(C(C1)=O)C)\\C=C\\C(=C/C=C/C(=C/C(=O)[O-])/C)\\C)(C)C
 xref: PMID:14532297
 cyclic_relationship: is_conjugate_base_of CHEBI:139255

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  CHEBI ontology 19812
    chemical entity 19812
      molecular entity 19811
        ion 16058
          anion 14975
            organic anion 3059
              carboxylic acid anion 2401
                retinoid anion 0
                  9-cis-4-oxoretinoate 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19812
    subatomic particle 19811
      composite particle 19811
        hadron 19811
          baryon 19811
            nucleon 19811
              atomic nucleus 19811
                atom 19811
                  main group element atom 19708
                    p-block element atom 19708
                      carbon group element atom 19630
                        carbon atom 19620
                          organic molecular entity 19620
                            organic ion 9154
                              organic anion 3059
                                carboxylic acid anion 2401
                                  monocarboxylic acid anion 1501
                                    oxo monocarboxylic acid anion 0
                                      9-cis-4-oxoretinoate 0
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