90333-15-6 2-Naphthalenesulfonic acid,7-[(2-amino-5-nitrobenzoyl)amino]-4-hydroxy-3-[[2-methyl-4-[[(6-sulfo-1-naphthalenyl)amino]carbonyl]phenyl]azo]-, disodium salt
90333-47-4 2-Naphthalenesulfonic acid, 4-hydroxy-5-(1-naphthalenylazo)-,monosodium salt