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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:132974 term browser browse the term
Definition:A pyrazolone that is 5-methyl-4-methylene-2-(p-carboxyphenyl)-2,4-dihydro-3H-pyrazol-3-one in which the exocyclic carbon of the methylene group is attached to a 5-(4,5-dimethyl-2-nitrophenyl)furan-2-yl group by a single bond. C646 is a potent, cell permeable and selective competitive inhibitor of p300 and CBP (p300/CBP) histone acetyltransferases.
Synonyms:exact_synonym: 4-(4-{[5-(4,5-dimethyl-2-nitrophenyl)-2-furyl]methylene}-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzoic acid
 related_synonym: 4-[4-[[5-(4,5-Dimethyl-2-nitrophenyl)-2-furanyl]methylene]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]benzoic acid;   Formula=C24H19N3O6;   InChI=1S/C24H19N3O6/c1-13-10-20(21(27(31)32)11-14(13)2)22-9-8-18(33-22)12-19-15(3)25-26(23(19)28)17-6-4-16(5-7-17)24(29)30/h4-12H,1-3H3,(H,29,30);   InChIKey=HEKJYZZSCQBJGB-UHFFFAOYSA-N;   SMILES=C(=C1C(N(N=C1C)C2=CC=C(C(=O)O)C=C2)=O)([H])C=3OC(=CC3)C4=CC(=C(C=C4[N+]([O-])=O)C)C
 alt_id: CHEBI:95029
 xref: CAS:328968-36-1;   LINCS:LSM-6264;   PMID:23390536;   PMID:24746574;   PMID:26045780;   PMID:26711748;   PMID:26718586;   Reaxys:20607912

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C646 term browser
Symbol Object Name Qualifiers Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G Mir224 microRNA 224 decreases expression ISO C646 decreased expression of miR244 in a human hepatocellular carcinoma cell line RGD PMID:22459148 RGD:18182922 NCBI chr  X:152,223,754...152,223,835
Ensembl chr  X:152,223,754...152,223,835
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  CHEBI ontology 19883
    role 19833
      biological role 19833
        biochemical role 19370
          apoptosis inducer 11011
            C646 1
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  CHEBI ontology 19883
    subatomic particle 19881
      composite particle 19881
        hadron 19881
          baryon 19881
            nucleon 19881
              atomic nucleus 19881
                atom 19881
                  main group element atom 19771
                    p-block element atom 19771
                      carbon group element atom 19679
                        carbon atom 19668
                          organic molecular entity 19668
                            organic molecule 19596
                              organic cyclic compound 19407
                                organic heterocyclic compound 18517
                                  heteroarene 16558
                                    monocyclic heteroarene 13374
                                      azole 12545
                                        diazole 8251
                                          pyrazoles 1556
                                            pyrazolone 77
                                              C646 1
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