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4-bromopyrazole (4)CAS RN:2075-45-8
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Changzhou Wujin Kangda Chemical Co.,Ltd.Telephone:0086-519-83681036
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Beijing Pure Chem Co.,Ltd.Telephone:+86-10-83993285,13501360655
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Shandong Chenghui Shuangda Pharmaceutical Co., Ltd.Telephone:+86-531-58897029 /7098
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Hangzhou Shuyuan Pharmaceutical Technology Co., Ltd.Telephone:+86-571-86066502;18958062155