93964-91-1 2,4-dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-one, sodium salt
93964-40-0 4-hydroxy-7-[[[[5-hydroxy-6-[(2-methyl-4-sulphophenyl)azo]-7-sulpho-2-naphthyl]amino]carbonyl]amino]-3-(phenylazo)naphthalene-2-sulphonic acid, sodium salt