94276-75-2 EINECS 304-561-5 Trisodium (7-((4-chloro-6-(2-sulphoanilino)-1,3,5-triazin-2-yl)methylamino)-4-hydroxy-3-((2-hydroxy-5-sulphophenyl)azo)naphthalene-2-sulphonato(5-))cuprate(3-)