2637-34-5
2-巯基吡啶
+
638-29-9
戊酰氯
→
~97%
81357-55-3
S-pyridin-2-yl pentanethioate
109-52-4
缬草酸
~94%
502-56-7
5-壬酮
591-68-4
戊酸丁酯
19780-10-0
5-十二酮