4-Amino-6-((4-((4-((4-(diethylamino)-2-hydroxyphenyl)azo)phenyl)amino)-3-sulphophenyl)azo)-5-hydroxy-3-((4-nitrophenyl)azo)naphthalene-2,7-disulphonic acid, sodium salt 94200-89-2 EINECS 303-569-6