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发明人孙丽萍,高志强,沈红梅. "A Process for Preparing High-Purity 5,6-Diamino-1,3-dipropylpyrimidine-2,4(1H,3H)-dione hydrochloride" [P]. 中国发明专利, 专利号 CN 109357855 A, 授权公告日 2020-03-01.
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