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3-Nitro-4-Chlorobenzenesulfonamide (4)CAS RN:97-09-6
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Hangzhou Shuyuan Pharmaceutical Technology Co., Ltd.Telephone:+86-571-86066502;18958062155
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AB LaboratoriesTelephone:+86-755-26819998
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Dudley Chem Corp.Telephone:+86-17741815008;+86-13695005683
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Synthepharm Inc. (manufacture)Telephone:0755-26819998