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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:144745 term browser browse the term
Definition:A hydroxyaurone that is aurone which is substituted by hydroxy groups at the 3' and 4' positions; major species at pH 7.3. It shows inhibitory activity against several isoforms of the histone deacetylase complex (HDAC).
Synonyms:exact_synonym: (2Z)-2-[(3,4-dihydroxyphenyl)methylidene]-1-benzofuran-3(2H)-one
 related_synonym: Formula=C15H10O4;   InChI=1S/C15H10O4/c16-11-6-5-9(7-12(11)17)8-14-15(18)10-3-1-2-4-13(10)19-14/h1-8,16-17H/b14-8-;   InChIKey=HCBULGQMULJTCM-ZSOIEALJSA-N;   SMILES=C1=CC=CC2=C1C(=O)/C(=C/C3=CC=C(C(=C3)O)O)/O2
 xref: PMID:25455492;   PMID:30529567

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Term Annotations click to browse term
  CHEBI ontology 19703
    chemical entity 19702
      atom 19702
        nonmetal atom 19643
          oxygen atom 19422
            oxygen molecular entity 19422
              flavonoids 11195
                chalcones 914
                  2',3,4-trihydroxy-trans-chalcone 0
                    3',4'-dihydroxyaurone 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19703
    subatomic particle 19702
      composite particle 19702
        hadron 19702
          baryon 19702
            nucleon 19702
              atomic nucleus 19702
                atom 19702
                  main group element atom 19651
                    p-block element atom 19651
                      carbon group element atom 19595
                        carbon atom 19592
                          organic molecular entity 19592
                            organic group 18784
                              organic divalent group 18769
                                organodiyl group 18769
                                  carbonyl group 18735
                                    carbonyl compound 18735
                                      ketone 17073
                                        alpha,beta-unsaturated ketone 9951
                                          enone 9951
                                            chalcones 914
                                              chalcone 104
                                                trans-chalcone 104
                                                  2',3,4-trihydroxy-trans-chalcone 0
                                                    3',4'-dihydroxyaurone 0
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