1,7-Naphthalenedisulfonic acid, 4-(benzoylamino)-5-hydroxy-6-((4-((2-(sulfooxy)ethyl)sulfonyl)phenyl)azo)-, sodium salt 4-(Benzoylamino)-5-hydroxy-6-((4-((2-(sulphooxy)ethyl)sulphonyl)phenyl)azo)naphthalene-1,7-disulphonic acid, sodium salt 85567-16-4 EINECS 287-728-4