Synonyms: 1,3,6-Naphthalenetrisulfonic acid, 7-2-(aminocarbonyl)amino-4-4-5-amino-4-sulfo-2-4-2-(sulfooxy)ethylsulfonylphenylazophenylamino-6-chloro-1,3,5-triazin-2-ylaminophenylazo-, sodium salt;pentasodium 7-(4-(4-(5-amino-4-sulfonato-2-(4-((2-(sulfonato-ethoxy)sulfonyl)phenylazo)phenylamino)-6-chloro-1,3,5-triazin-2-yl)amino-2-ureidophenylazo)naphtalene-1,3,6-trisulfonate