has role azobenzenes naphthols dye aminonaphthalenesulfonic acid trypan blue(4-) trypan blue sulfonic acid 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+ CHEBI:78900 Drug_Central:4608 Wikipedia:Trypan_blue chebi_ontology 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 ZBNARPCCDMHDDV-HVMBLDELSA-N Trypan blue free acid 872.87800 872.05463 trypan blue acid CAS:2538-83-2 0 3,3'-[(3,3'-dimethylbiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis(5-amino-4-hydroxynaphthalene-2,7-disulfonic acid) C34H28N6O14S4 An aminonaphthalenesulfonic acid that is the free acid form of trypan blue dye.