2-[{4-[(e)-(2-chloro-4-nitrophenyl)diazenyl]phenyl}(ethyl)amino]-n,n,n-trimethylethanaminium methyl sulfate, EINECS 238-129-1, (2-((4-((2-Chloro-4-nitrophenyl)azo)phenyl)ethylamino)ethyl)trimethylammonium methyl sulphate, 2-((4-((2-Chloro-4-nitrophenyl)azo)phenyl)ethylamino)-N,N,N-trimethylethanaminium methyl sulfate, 2-(N-Ethyl-N-(4-((2-chloro-4-nitrophenyl)azo)phenyl)-N,N,N-trimethylethanaminium,methyl sulfate,