59697-12-0 AMMONIUM, N,N-DIMETHYL-N,N',N',N'-TETRAETHYL-N,N'-OXYDIETHYLENEDI-, DITARTRATE AS-4137 N,N,N,N'-Tetraethyl-N',N'-dimethyl-3-oxapentane-1,5-diammonium di-monohydrogen tartrate Oxaditon