83562-72-5 EINECS 280-482-9 Trisodium 4-amino-3-((4'-((2,4-diaminophenyl)azo)-3,3'-dimethoxy(1,1'-biphenyl)-4-yl)azo)-5-hydroxy-6-((4-sulphonatophenyl)azo)naphthalene-2,7-disulphonate