[1-[3-(4-methylpyridin-1-ium-1-yl)propyl]pyridin-4-ylidene]methyl-oxoazanium,dibromide

3-(苯甲酰氧基)丙基苯甲酸酯

benzoic acid 3-bromopropyl ester

2-环丙基-2-氧代乙酸

四苯基丙二烯