(2-((4-((2-Chloro-4-nitrophenyl)azo)phenyl)ethylamino)ethyl)trimethylammonium chloride 25198-22-5 EINECS 246-730-5 Ethanaminium, 2-((4-((2-chloro-4-nitrophenyl)azo)phenyl)ethylamino)-N,N,N-trimethyl-, chloride Trimethyl-(2-(N-(4-(2-chloro-4-nitrophenylazo)phenyl)-N-ethylamino)ethyl)ammonium chloride