78-98-8
丙酮醛
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117883-59-7
6-methyl-1,2-dihydropyrazolo[3,4-b]pyrazin-3-one
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117883-60-0
5-methyl-1,2-dihydropyrazolo[3,4-b]pyrazin-3-one
6761-50-8
3-Amino-5-methylpyrazine-2-carboxylic acid
50627-49-1
3-氨基-5-甲基吡嗪-2-羧酰胺