21230-43-3
3-氨基-1-甲基-吡唑-4-羧酸乙酯
→
~89%
114936-29-7
3-amino-1-methylpyrazole-4-carbohydrazide
114936-12-8
5-amino-2-methylpyrazolo[3,4-d]pyrimidin-4-one