74-96-4
溴乙烷
+
58-55-9
茶碱
→
~95%
23043-88-1
7-ethyl-1,3-dimethylpurine-2,6-dione
75-03-6
碘乙烷
~80%
186581-53-3
重氮甲烷
102244-26-8
1-methyl-7-ethylxanthine
~39%
5176-82-9
1,3-Dimethylparabanic acid
7664-41-7
液氨
75-04-7
乙胺
55242-68-7
7-ethyl-3-methylpurine-2,6-dione