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"tert-butyl 3-ethynyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-5-carboxylate"
CAS:2174007-60-2 英文名:"tert-butyl 3-ethynyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-5-carboxylate" 更多产品信息