138786-86-4
4-硝基-1H-吡唑-3-羧酸甲酯
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923283-58-3
4-氨基-1-乙基-1H-吡唑-3-羧酸甲酯
923283-30-1
methyl 1-ethyl-4-nitro-1H-pyrazole-5-carboxylate
923282-50-2
7-氯-1-乙基-1H-吡唑并[4,3-d]嘧啶