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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:68628 term browser browse the term
Definition:An organosulfonate oxoanion which is also a monocarboxylic acid anion obtained by deprotonation of the sulfo and carboxy groups of tartrazine acid.
Synonyms:exact_synonym: 5-oxo-1-(4-sulfonatophenyl)-4-[(E)-(4-sulfonatophenyl)diazenyl]-4,5-dihydro-1H-pyrazole-3-carboxylate
 related_synonym: Formula=C16H9N4O9S2;   InChI=1S/C16H12N4O9S2/c21-15-13(18-17-9-1-5-11(6-2-9)30(24,25)26)14(16(22)23)19-20(15)10-3-7-12(8-4-10)31(27,28)29/h1-8,13H,(H,22,23)(H,24,25,26)(H,27,28,29)/p-3/b18-17+;   InChIKey=RFKITWRHKUYMRJ-ISLYRVAYSA-K;   SMILES=[O-]C(=O)C1=NN(C(=O)C1\\N=N\\c1ccc(cc1)S([O-])(=O)=O)c1ccc(cc1)S([O-])(=O)=O
 cyclic_relationship: is_conjugate_base_of CHEBI:68629

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Term Annotations click to browse term
  CHEBI ontology 402
    chemical entity 402
      molecular entity 402
        ion 27
          organic ion 19
            organic anion 8
              organosulfonate oxoanion 1
                tartrazine(3-) 0
                  tartrazine 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 402
    subatomic particle 402
      composite particle 402
        hadron 402
          baryon 402
            nucleon 402
              atomic nucleus 402
                atom 402
                  main group element atom 395
                    p-block element atom 395
                      chalcogen 350
                        oxygen atom 348
                          oxygen molecular entity 348
                            oxide 17
                              oxoanion 8
                                chalcogen oxoanion 1
                                  sulfur oxoanion 1
                                    sulfonate 1
                                      organosulfonate oxoanion 1
                                        tartrazine(3-) 0
                                          tartrazine 0
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