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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:73261 term browser browse the term
Definition:A member of the class of pyrazoles that is antipyrine substituted at C-4 by a methylamino group. It is a metabolite of aminopyrine and of metamizole.
Synonyms:exact_synonym: 1,5-dimethyl-4-(methylamino)-2-phenyl-1,2-dihydro-3H-pyrazol-3-one
 related_synonym: 4-methylaminoantipyrine;   4-methylaminophenazone;   4-monomethylaminoantipyrine;   4-monomethylaminophenazone;   Formula=C12H15N3O;   InChI=1S/C12H15N3O/c1-9-11(13-2)12(16)15(14(9)3)10-7-5-4-6-8-10/h4-8,13H,1-3H3;   InChIKey=JILCEWWZTBBOFS-UHFFFAOYSA-N;   SMILES=CNc1c(C)n(C)n(-c2ccccc2)c1=O;   noramidopyrine;   noraminopyrine
 xref: CAS:519-98-2;   PMID:21083168;   Reaxys:195234

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19795
    role 19746
      biological role 19746
        xenobiotic 18434
          antipyrine 3
            4-(methylamino)antipyrine 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19795
    subatomic particle 19794
      composite particle 19794
        hadron 19794
          baryon 19794
            nucleon 19794
              atomic nucleus 19794
                atom 19794
                  main group element atom 19693
                    p-block element atom 19693
                      carbon group element atom 19614
                        carbon atom 19604
                          organic molecular entity 19604
                            organic molecule 19545
                              organic cyclic compound 19339
                                organic heterocyclic compound 18579
                                  heteroarene 16539
                                    monocyclic heteroarene 13505
                                      azole 12710
                                        diazole 8600
                                          pyrazoles 2292
                                            pyrazolone 78
                                              antipyrine 3
                                                4-(methylamino)antipyrine 0
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