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Term:Ponceau S (acid form)
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Accession:CHEBI:90322 term browser browse the term
Definition:An arenesulfonic acid that is 3-hydroxynaphthalene-2,7-disulfonic acid carrying a {2-sulfo-4-[(4-sulfophenyl)diazenyl]phenyl}diazenyl group at position 4. The tetrasodium salt is the biological stain 'Ponceau S'.
Synonyms:exact_synonym: 3-hydroxy-4-({2-sulfo-4-[(4-sulfophenyl)diazenyl]phenyl}diazenyl)naphthalene-2,7-disulfonic acid
 related_synonym: Formula=C22H16N4O13S4;   InChI=1S/C22H16N4O13S4/c27-22-20(43(37,38)39)10-12-9-16(41(31,32)33)6-7-17(12)21(22)26-25-18-8-3-14(11-19(18)42(34,35)36)24-23-13-1-4-15(5-2-13)40(28,29)30/h1-11,27H,(H,28,29,30)(H,31,32,33)(H,34,35,36)(H,37,38,39);   InChIKey=KMNTUASVUKNVJS-UHFFFAOYSA-N;   Ponceau S free acid;   SMILES=C1=C(C=CC(=C1)N=NC2=CC(=C(C=C2)N=NC3=C4C(=CC(=C3O)S(O)(=O)=O)C=C(C=C4)S(O)(=O)=O)S(O)(=O)=O)S(O)(=O)=O
 cyclic_relationship: is_conjugate_acid_of CHEBI:90323

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  CHEBI ontology 19790
    role 19738
      application 19385
        dye 1286
          histological dye 149
            Ponceau S (acid form) 0
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  CHEBI ontology 19790
    subatomic particle 19788
      composite particle 19788
        hadron 19788
          baryon 19788
            nucleon 19788
              atomic nucleus 19788
                atom 19788
                  main group element atom 19674
                    p-block element atom 19674
                      carbon group element atom 19572
                        carbon atom 19561
                          organic molecular entity 19561
                            organic molecule 19483
                              organic cyclic compound 19246
                                carbocyclic compound 17628
                                  carbopolycyclic compound 14981
                                    carbobicyclic compound 4559
                                      naphthalenes 3743
                                        hydroxynaphthalene 238
                                          naphthols 231
                                            Ponceau S (acid form) 0
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