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2(1H)-Pyrimidinone (4)CAS RN:557-01-7
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Changzhou Yetai Fine chemical Research Institue(Jiangsu Yeming Biomedical Technology Co., Ltd.)Telephone:+86-519-83299352
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Hangzhou Shuyuan Pharmaceutical Technology Co., Ltd.Telephone:+86-571-86066502;18958062155
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General Intermediates of Canada, Inc.Telephone:+1-780-4832783
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Katwijk Chemie B.V.Telephone:+31 71 40 56 789