117007-83-7
5-Azido-1-methylpyrazole-4-carboxaldehyde
→
~59%
62564-90-3
5-氨基-1-甲基-1H-吡唑-4-甲醛
117007-77-9
1H-吡唑-4-甲醛, 5-氯-1-甲基-
5334-41-8
5-氨基-1-甲基-吡唑-4-甲腈