132-88-7 2-Naphthalenesulfonic acid, 4-hydroxy-7-((4-nitrobenzoyl)amino)- 2-Naphthalenesulfonic acid, 4-hydroxy-7-(p-nitrobenzamido)- (8CI) 2-Naphthalenesulfonic acid, 7-(p-nitrobenzamido)-4-hydroxy- 4-Aminobenxoyl J Pure 4-Hydroxy-7-((4-nitrobenzoyl)amino)naphthalene-2-sulphonic acid 4-Nitrobenzoyl J acid EINECS 205-081-8 NSC 37170