108-89-4
4-甲基吡啶
+
100-11-8
对硝基溴化苄
→
~98%
57042-61-2
1-p-Methylphenyl-2-imidazolidinon
7250-28-4
2-(4-methylpyridin-1-ium-1-yl)-1-phenylethanone,bromide