74-96-4
溴乙烷
+
83-67-0
可可碱
→
~72%
39832-36-5
1-ethyl-3,7-dimethylpurine-2,6-dione
75-03-6
碘乙烷
~3%
80-40-0
对甲苯磺酸乙酯
64-67-5
硫酸二乙酯
16017-78-0