(2-((4-((2-Chloro-4-nitrophenyl)azo)phenyl)ethylamino)ethyl)trimethylammonium methyl sulphate 14254-17-2 2-((4-((2-Chloro-4-nitrophenyl)azo)phenyl)ethylamino)-N,N,N-trimethylethanaminium methyl sulfate 247151-62-8 EINECS 238-129-1 Ethanaminium, 2-((4-((2-chloro-4-nitrophenyl)azo)phenyl)ethylamino)-N,N,N-trimethyl-, methyl sulfate