116212-48-7
3-methyl-1H-pyrrolo-[2,1-c][1,4]oxazin-1-one
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1025054-80-1
3-甲基吡咯并[1,2-a]吡嗪-1(2H)-酮
1025054-90-3
1-氯-3-甲基吡咯并[1,2-a]吡嗪