82944-45-4 2-[[1-Hydroxy-6-[[[[5-hydroxy-6-[(2-hydroxy-5-nitrophenyl)azo]-7-sulfo-2-naphtyl]amino]carbonyl]amino]-3-sulfo-2-naphtyl]azo]benzoic acid trisodium salt
82944-40-9 3-[[2-[(N-Ethyl-N-phenylamino)sulfonyl]phenyl]azo]-4-hydroxy-1-naphthalenesulfonic acid sodium salt