(1,1'-Biphenyl)-3,3'-dicarboxylic acid, 4,4'-bis((5-((5-(aminosulfonyl)-2-hydroxyphenyl)azo)-1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl)azo)-, disodium salt 2-Naphthalenesulfonic acid, 3-((4-(4-((7-(phenylamino)-8-((2-hydroxy-5-(aminosulfonyl)phenyl)azo)-4-hydroxy-2-sulfonaphth-3-yl)azo)-3-carboxyphenyl)-2-carboxyphenyl)azo)-4-hydroxy-8-((2-hydroxy-5-(aminosulfonyl)phenyl)azo)-7-(phenylamino)-, disodium salt 72939-54-9 Disodium dihydrogen 4,4'-bis((5-((5-(aminosulphonyl)-2-hydroxyphenyl)azo)-1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl)azo)(1,1'-biphenyl)-3,3'-dicarboxylate EINECS 277-108-1