(p-((4-(Ethyl(2-hydroxy-3-(trimethylammonio)propyl)amino)-o-tolyl)azo)-beta-oxophenethyl)trimethylammonium bis(tetrafluoroborate(1-)) 36936-37-5 Benzeneethanaminium, 4-((4-(ethyl(2-hydroxy-3-(trimethylammonio)propyl)amino)-2-methylphenyl)azo)-N, N,N-trimethyl-beta-oxo-, bis(tetrafluoroborate(1-)) Benzeneethanaminium, 4-((4-(ethyl(2-hydroxy-3-(trimethylammonio)propyl)amino)-2-methylphenyl)azo)-N,N,N-trimethyl-beta-oxo-, bis(tetrafluoroborate(1-)) EINECS 253-280-3