2,7-Naphthalenedisulfonic acid,4-amino-5-hydroxy-,coupled with 6-amino-4-hydroxy-2-naphthalenesulfonic acid and diazotized 2-(4-aminophenyl)-1H-benzimidazol-5-amine
2,7-Naphthalenedisulfonic acid,4-amino-5-hydroxy-,coupled with 6-amino-4-hydroxy-2-naphthalenesulfonic acid and diazotized 2-(4-aminophenyl)-1H-benzimidazol-5-amine