6428-16-6 7-[[4-[(6-Ureido-1-hydroxy-3-sodiosulfo-2-naphthalenyl)azo]benzoyl]amino]-4-hydroxy-3-[[4-[(4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-2-sulfonic acid sodium salt
64280-15-5 Phenol, 2-(dimethylamino)-4-(methylphenylamino)-, hydrogen sulfate(ester), sodium salt