108-89-4
4-甲基吡啶
+
106-93-4
二溴乙烷
→
6272-94-2
4-methyl-1-[2-(4-methylpyridin-1-ium-1-yl)ethyl]pyridin-1-ium,bromide
89932-31-0
1-(2-bromoethyl)-4-methylpyridin-1-ium,bromide