1,7-Naphthalenedisulfonic acid,4-(benzoylamino)-5-hydroxy-6-((1-sulfo-6-((2-(sulfooxy)ethyl)sulfonyl)-2-naphthalenyl)azo)-,tetrasodium salt, Tetrasodium 4-(benzoylamino)-5-hydroxy-6-((1-sulphonato-6-((2-(sulphonatooxy)ethyl)sulphonyl)-2-naphthyl)azo)naphthalene-1,7-disulphonate, EINECS 279-915-4, 1,7-Naphthalenedisulfonic acid,4-(benzoylamino)-5-hydroxy-6-(2-(1-sulfo-6-((2-(sulfooxy)ethyl)sulfonyl)-2-naphthalenyl)diazenyl)-,sodium salt (1:4),