5-((4-(((4-((8-Amino-1-hydroxy-7-((4-nitrophenyl)azo)-3,6-disulpho-2-naphthyl)azo)phenyl)amino)carbonyl)phenyl)azo)salicylic acid 56918-93-5 Benzoic acid, 5-((4-(((4-((8-amino-1-hydroxy-7-((4-nitrophenyl)azo)-3,6-disulfo-2-naphthalenyl)azo)phenyl)amino)carbonyl)phenyl)azo)-2-hydroxy- EINECS 260-433-8