17827-61-1
1-甲基-1H-吡唑-3-羧酸甲酯
→
~80%
75092-25-0
4-甲基碘- 1 -甲基- 1H-吡唑- 3 -羧酸
79229-73-5
methyl 1-methyl-4-(2-phenylethynyl)pyrazole-3-carboxylate