C.I. Direct brown 223;One of the kayaku direct brown MA;sodium hydrogen 5-[[4'-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]salicylate;Sodium hydrogen 5-((4'-((7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo)-3,3'-dimethyl(1,1'-biphenyl)-4- yl)azo)salicylate