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Suzhou Hengyi Pharmaceutical Co., Ltd. established in 1998, we are the largest manufacturer of 2-(4-Bromomethyl) phenyl propionic acid (BMPPA) and pyridostigmine bromide,and we are the one of the largest manufacturers of ketoprofen and its intermediates, such as ketoprofen nitrile, 3-(1-Cyanoethyl) Benzoic Acid, and Chiral products (S/R-4-PHENYL-2-OXAZOLIDINONE, S/R-4-BENZYL-2-OXAZOLIDINONE) in China.