1-Naphthalenesulfonic acid, 6-amino-5-((2-sulfo-4-((2-(sulfooxy)ethyl)sulfonyl)phenyl)azo)-, sodium salt 6-Amino-5-((2-sulpho-4-((2-(sulphooxy)ethyl)sulphonyl)phenyl)azo)naphthalene-1-sulphonic acid, sodium salt 85536-93-2 EINECS 287-581-6