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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:150,065,088...150,065,169
Ensembl chr  X:150,065,088...150,065,169
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Term paths to the root
Path 1
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  CHEBI ontology 19800
    role 19751
      biological role 19751
        biochemical role 19368
          apoptosis inducer 13312
            C646 1
Path 2
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  CHEBI ontology 19800
    subatomic particle 19799
      composite particle 19799
        hadron 19799
          baryon 19799
            nucleon 19799
              atomic nucleus 19799
                atom 19799
                  main group element atom 19698
                    p-block element atom 19698
                      carbon group element atom 19619
                        carbon atom 19609
                          organic molecular entity 19609
                            organic molecule 19549
                              organic cyclic compound 19343
                                organic heterocyclic compound 18584
                                  heteroarene 16542
                                    monocyclic heteroarene 13505
                                      azole 12710
                                        diazole 8598
                                          pyrazoles 2291
                                            pyrazolone 78
                                              C646 1
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