英文别名
3-(2,4-dimethyl-5-sulfo-phenylazo)-4-hydroxy-naphthalene-1-sulfonic acid;3-(2,4-Dimethyl-5-sulfo-phenylazo)-4-hydroxy-naphthalin-1-sulfonsaeure;2-(2,4-dimethylphenylazo-5-sulfonic acid)-1-hydroxynaphthalene-4-sulfonic acid;2-(2,4-dimethylphenylazo-5-sulpho)-1-hydroxynaphthalene-4-sulphonic acid;FD&C Red No. 4 free acid;3-[(2,4-dimethyl-5-sulfophenyl)diazenyl]-4-hydroxynaphthalene-1-sulfonic acid