Shanghai Richem International Co., Ltd

　　Established in 2011, Sichuan Tongsheng Biotechnology Co., Ltd lies in development zones of Deyang city, which locates in middle express way between Deyang city and Mianyang city in Sichuan Basin and Chengdu Plain. This place has beautiful mountains, clear waters, fine scenery and pleasant weather, and the transportation and communication is very convenient.

　　Our factory has an area of 21,000 square meters, and is specializing in pharmaceutical intermediates, amino acids, amino acids derivatives, the other kind of pharmaceutical intermediates raw materials, and health care raw materials and products. The advantages of our products：

　　1、Pharmaceutical Intermediates：Metadoxine(pyroglutamic acid)、Lacosamide、Linagliptin【(R) - 3 - amino piperidine double hydrochloride;(R)-3-(Boc-Amino)piperidine】、Intermediate of Saxagliptin【(1 s, 3 s, 5 s) - 3 - (amino carbonyl) - 2 - nitrogen mixed bicyclic hexane - 2 - formic acid tert-butyl ester、(1 r, 3 s, 5 r) - 2 - nitrogen mixed bicyclic hexane - 3 - formamide hydrochloride, N - tertiary butyl oxygen carbonyl - 3 - hydroxy - 1 - king kong alkyl - D - glycine】、pidotimod、Thioproline

　　2、health care products：theanine