7364-25-2
3-羟基-1H-吲唑
→
89438-43-7
ethyl 2-butyl-3-oxoindazole-1-carboxylate
16105-24-1
2,3-二氢-3-氧代-1H-吲唑-1-羧酸乙酯
89438-55-1
2-丁基-1,2-二氢-3H-吲唑-3-酮