75885-14-2 | 2-Naphthalenesulfonic acid, 4-hydroxy-6-[(3-nitrobenzoyl)amino]-, monosodium salt | C17H12N2O7S.Na |
75885-17-5 | 2-Naphthalenesulfonic acid, 4-hydroxy-6-[(4-nitrobenzoyl)amino]-, monosodium salt | C17H12N2O7S.Na |
75885-20-0 | 2-Naphthalenesulfonic acid, 4-hydroxy-6-[(4-methyl-3-nitrobenzoyl)amino]-, monosodium salt | C18H14N2O7S.Na |