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Rifamycin O (4)CAS RN:14487-05-9
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Zhejiang Zhongxian Biotechnology Co., Ltd.Telephone:+86-575-89298668
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SINOCO CHEMICAL CO., LIMITEDTelephone:86-571-81956191 81956192
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Hangzhou Shuyuan Pharmaceutical Technology Co., Ltd.Telephone:+86-571-86066502;18958062155
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Shanhhai Qingteng Biotech Co.,LtdTelephone:13276765708