109-80-8
1,3-丙二硫醇
+
78-94-4
丁烯酮 甲基乙烯基酮
603-35-0
三苯基膦
→
71864-06-7
2-(2-methyl-1,3-dithian-2-yl)ethyl-triphenylphosphanium,bromide