2-Propoxy-2-propenylidene methanaminium 95899-36-8 K 154,028 K 154028 K-154,028 Methanaminium, N-(3-(dimethylamino)-2-propoxy-2-propenylidene)-N-methyl- N-(3-(Dimethylamino)-2-propoxy-2-propenylidene)-N-methylmethanaminium