402-61-9
5-甲基-1H-吡唑-3-羧酸
→
4027-56-9
5-Methyl-1H-pyrazole-3-carboxamide
49664-33-7
2,7-dimethyl-4H,9H-dipyrazolo[1,5-a,1',5'-d]pyrazine-4,9-dione
4027-57-0
3-甲基吡唑-5-甲酸乙酯