63957-54-0 AMMONIUM, N,N-DIETHYL-N',N'-DIMETHYL-N,N'-OXYDIETHYLENEBIS(beta-HYDROXYETHYL-, D AS-4159 Ammonium, N,N-diethyl-N',N'-dimethyl-N,N'-oxydiethylenebis(beta-hydroxyethyl-, dibromide