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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:trypan blue sulfonic acid
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Accession:CHEBI:78900 term browser browse the term
Definition:An aminonaphthalenesulfonic acid that is the free acid form of trypan blue dye.
Synonyms:exact_synonym: 3,3'-[(3,3'-dimethylbiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis(5-amino-4-hydroxynaphthalene-2,7-disulfonic acid)
 related_synonym: Formula=C34H28N6O14S4;   InChI=1S/C34H28N6O14S4/c1-15-7-17(3-5-25(15)37-39-31-27(57(49,50)51)11-19-9-21(55(43,44)45)13-23(35)29(19)33(31)41)18-4-6-26(16(2)8-18)38-40-32-28(58(52,53)54)12-20-10-22(56(46,47)48)14-24(36)30(20)34(32)42/h3-14,41-42H,35-36H2,1-2H3,(H,43,44,45)(H,46,47,48)(H,49,50,51)(H,52,53,54)/b39-37+,40-38+;   InChIKey=ZBNARPCCDMHDDV-HVMBLDELSA-N;   SMILES=Cc1cc(ccc1\\N=N\\c1c(O)c2c(N)cc(cc2cc1S(O)(=O)=O)S(O)(=O)=O)-c1ccc(\\N=N\\c2c(O)c3c(N)cc(cc3cc2S(O)(=O)=O)S(O)(=O)=O)c(C)c1;   Trypan blue free acid;   trypan blue acid
 xref: CAS:2538-83-2;   Drug_Central:4608;   Wikipedia:Trypan_blue
 cyclic_relationship: is_conjugate_acid_of CHEBI:78899

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19787
    role 19734
      application 19393
        dye 1296
          trypan blue 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
                      chalcogen 19362
                        oxygen atom 19323
                          oxygen molecular entity 19323
                            hydroxides 19068
                              oxoacid 18193
                                chalcogen oxoacid 11482
                                  sulfur oxoacid 11085
                                    sulfonic acid 7333
                                      sulfo group 5733
                                        organosulfonic acid 5733
                                          arenesulfonic acid 674
                                            naphthalenesulfonic acid 44
                                              aminonaphthalenesulfonic acid 0
                                                trypan blue sulfonic acid 0
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