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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.

Term:1,2-naphthoquinone-4-sulfonic acid
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Accession:CHEBI:137378 term browser browse the term
Definition:An arenesulfonic acid that is 1,2-naphthoquinone substituted at position 4 with a sulfonic acid group. Used principally as a reagent in colorimetric determinations.
Synonyms:exact_synonym: 3,4-dioxo-3,4-dihydronaphthalene-1-sulfonic acid
 related_synonym: 1,2-naphthoquinone-4-sulphonic acid;   3,4-dihydro-3,4-dioxo-1-naphthalenesulfonic acid;   3,4-dihydro-3,4-dioxonaphthalene-1-sulphonic acid;   Formula=C10H6O5S;   InChI=1S/C10H6O5S/c11-8-5-9(16(13,14)15)6-3-1-2-4-7(6)10(8)12/h1-5H,(H,13,14,15);   InChIKey=PZTGRDMCBZUJDL-UHFFFAOYSA-N;   SMILES=C1=2C=CC=CC2C(=CC(C1=O)=O)S(=O)(=O)O;   beta-naphthoquinone-4-sulfonic acid
 xref: CAS:2066-93-5;   PMID:14322087;   PMID:14583285;   PMID:28166217;   PMID:5399808;   PMID:7381718;   PMID:7515295;   Patent:US6458168

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Term Annotations click to browse term
  CHEBI ontology 19787
    role 19734
      application 19393
        reagent 17168
          colorimetric reagent 10
            1,2-naphthoquinone-4-sulfonic acid 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19787
    subatomic particle 19784
      composite particle 19784
        hadron 19784
          baryon 19784
            nucleon 19784
              atomic nucleus 19784
                atom 19784
                  main group element atom 19672
                    p-block element atom 19672
                      carbon group element atom 19574
                        carbon atom 19563
                          organic molecular entity 19563
                            organic group 18495
                              organic divalent group 18488
                                organodiyl group 18488
                                  carbonyl group 18391
                                    carbonyl compound 18391
                                      ketone 16144
                                        cyclic ketone 13813
                                          naphthalenone 0
                                            1,2-naphthoquinone-4-sulfonic acid 0
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