63977-23-1 AMMONIUM, N,N-DIMETHYL-N,N',N',N'-TETRAETHYL-N',N'-OXYETHYLENETRIMETHYLENEDI-, D AS-16,678 Ammonium, N,N-dimethyl-N,N',N',N'-tetraethyl-N',N'-oxyethylenetrimethylenedi-, dibromide