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Suzhou ChangTong Chemicals Co.,Ltd. is a privately owned hi-tech company with three Subordinated manufacturing bases and a biochemistry institution. All the products me manut acture and deal with are all developed by our company; The products are:Prazosin Hydrochloride;Terazosin Hydrochloride; Doxazosin Mesylate ;alfuzosin Hydrochloride;Calium Dobesilate Monohydrate; Kalium（2,5-dihydroxybenzaenesulphonate）;Etamsylate;Nicardipine Hydrochloride;RaloxifeneHydrochloride;Phenoxybenzamine Hydrochloride;Adefovir Dipivoxil;Caffeic Acid;Ferulic Acid;Sodium Ferulate;Ethyl Ferulate ;PiperazineFerulate ;4-Dimethylaminopyridine;4-Hydroxy-3-methoxy-benzoic Acid（Vanillic acid） ;3,4-Dihydroxybenzoic Acid3,4Dimethoxybenzaldehyde;HydrocinnamicAcid  Click for details>>