94159-51-0 EINECS 303-231-8 Trisodium 4-amino-3-((4-((4-((4-((2-(diethylamino)ethyl)amino)-2-hydroxyphenyl)azo)phenyl)amino)-3-sulphonatophenyl)azo)-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate