94159-50-9 EINECS 303-230-2 Trisodium 4-amino-3-((4-((4-((2-((2-(diethylamino)ethyl)amino)-4-hydroxyphenyl)azo)phenyl)amino)-3-sulphonatophenyl)azo)-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate