EINECS 287-731-0, 2,7-Naphthalenedisulfonic acid,5-(acetylamino)-4-hydroxy-3-((8-((2-(sulfooxy)ethyl)sulfonyl)-2-naphthalenyl)azo)-,sodium salt, 2,7-Naphthalenedisulfonic acid,5-(acetylamino)-4-hydroxy-3-(2-(8-((2-(sulfooxy)ethyl)sulfonyl)-2-naphthalenyl)diazenyl)-,sodium salt (1:?), 5-(Acetamido)-4-hydroxy-3-((8-((2-(sulphooxy)ethyl)sulphonyl)-2-naphthyl)azo)naphthalene-2,7-disulphonic acid,sodium salt,