1-Triazol [Czech] 2-(4'-Aminoxenyl)nafto-alpha,beta-triazol-6,8-disulfonan draselny [Czech] 2H-NAPHTHO(1,2-d)TRIAZOLE-6,8-DISULFONIC ACID, 2-(4'-AMINO-1,1'-BIPHENYL-4-YL)-, 2H-Naphtho(1,2-d)triazole-6,8-disulfonic acid, 2-(4'-amino-1,1'-biphenyl-4-yl)-, dipotassium salt 74039-01-3