1-Naphthalenesulfonic acid, 3-hydroxy-4-((2-hydroxy-5-methylphenyl)azo)- 1-Naphthalenesulfonic acid, 3-hydroxy-4-((6-hydroxy-m-tolyl)azo)- (8CI) 3-Hydroxy-4-((6-hydroxy-m-tolyl)azo)-1-naphthalenesulfonic acid 3-Hydroxy-4-(6-hydroxy-m-tolylazo)naphthalene-1-sulphonic acid 3147-14-6 Calmagite EINECS 221-563-0 NSC 299391