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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:59026 term browser browse the term
Definition:A pyrazolone, a member of the class of pyrazoles that is antipyrine substituted at C-4 by an amino group. It is a metabolite of aminopyrine and of metamizole.
Synonyms:exact_synonym: 4-amino-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one
 related_synonym: 4-AAP;   4-Amino-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one;   4-Aminoantipyrene;   4-Aminophenazone;   Aminoantipyrin;   Aminoantipyrine;   Aminoazophenazone;   Aminoazophene;   Ampyrone;   Formula=C11H13N3O;   InChI=1S/C11H13N3O/c1-8-10(12)11(15)14(13(8)2)9-6-4-3-5-7-9/h3-7H,12H2,1-2H3;   InChIKey=RLFWWDJHLFCNIJ-UHFFFAOYSA-N;   Metapirazone;   SMILES=Cc1c(N)c(=O)n(-c2ccccc2)n1C;   Solnapyrin-A;   Solvapyrin-A
 xref: Beilstein:181635;   CAS:83-07-8;   LINCS:LSM-5369;   PMID:24056243;   PMID:24508878;   PMID:25476354;   PMID:25652276;   PMID:25947243;   PMID:3425858;   Reaxys:181635;   Wikipedia:Ampyrone

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Term Annotations click to browse term
  CHEBI ontology 19781
    role 19726
      biological role 19726
        xenobiotic 18398
          antipyrine 3
            4-aminoantipyrine 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19781
    subatomic particle 19779
      composite particle 19779
        hadron 19779
          baryon 19779
            nucleon 19779
              atomic nucleus 19779
                atom 19779
                  main group element atom 19669
                    p-block element atom 19669
                      carbon group element atom 19588
                        carbon atom 19578
                          organic molecular entity 19578
                            organic molecule 19510
                              organic cyclic compound 19337
                                organic heterocyclic compound 18550
                                  heteroarene 16513
                                    monocyclic heteroarene 13360
                                      azole 12536
                                        diazole 8254
                                          pyrazoles 1555
                                            pyrazolone 78
                                              antipyrine 3
                                                4-aminoantipyrine 0
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