disodium 5-[[4'-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]salicylate

Disodium 5-((4'-((7-amino-1-hydroxy-3-sulphonato-2- naphthyl)azo)-3,3'-dimethyl (1,1'-biphenyl)-4-yl)azo) salicylate

5-[[4'-[(7-Amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-3,3'-dimethyl-[1,1'-biphenyl]-4-yl]azo]-2-hydroxybenzoic acid disodium salt