90218-27-2 Benzenesulfonic acid, 2-[(4-aminophenyl)amino]-5-nitro-, diazotized, coupled with diazotized 3-amino-4-hydroxybenzenesulfonic acid and m-phenylenediamine
90218-92-1 Benzoic acid, 2-hydroxy-, monosodium salt, coupled with 7-(acetylamino)-4-hydroxy-2-naphthalenesulfonic acid and diazotized 2-(4-aminophenyl)-1H-benzimidazol-5-amine, sodium salt