Nanjing Kairun Biochemical Engineering Co.,Ltd. (originally Nanjing Tiancheng Biochemical Engineering Co.,Ltd.) is established by national biochemical engineering research center.As a technological industrial enterprise,our main target is product research and technological innovation.For many years,on the basis of completing national and provincial technological issues,our many advanced technology has achieved industrialization in our company and other domestic companies.Especially DL-Serine of "complete chemical synthesis method" and D-Serine of parametric pump split method under the guarantee of various quality controlling method,the quality of them reach theinternational advanced level and confirm to requirement of domestic and foreign customers.

"Complete chemical synthesis method" is different with "L-Serine DL method",while the former is synthesis from basic chemical materials,DL-Serine is entirely racemization,its specific rotation is almost zero,the quality can be guaranteed,the L-Serine DL method can't achieve the quality required by pharmaceutical intermediate requirement.

Source of D-Serine is basically derived from the Resolution of DL-Serine,while parametric pump split method," Preparation of D-Serine with high specific optical rotation, which contains L-Serine isomer is less than 0.5%.There are very few company worldwide can reach such indicators.We also produce isomer of L-Serine less than 0.1% of D-Serine according to customers' requirement.

Cooperate with Nanjing Chemical Park, our company will move to Special Innovation Park in Nanjing Chemical Park which is newly established.Then we'll add other chiral Serine series products.We'll create international well-known chiral Serine product base with advanced technology and excellent quality.