hexasodium 3-[[4-(4-amino-2-sulfonato-phenyl)azo-6-sulfonato-1-naphthyl]azo]-7-[[6-[[4-(4-amino-2-sulfonato-phenyl)azo-7-sulfonato-1-naphthyl]azo]-5-hydroxy-7-sulfonato-2-naphthyl]amino]-4-hydroxy-naphthalene-2-sulfonate
CAS No. 71033-10-8