Zhejiang Chemtrue Bio-Pharm was established in 2013, is a national high-tech pharmaceutical & chemical enterprise which is integrated in scientific research, production, and sales for pharma-intermediates,fine chemicals & custom synthesis etc., Our marketing and R&D center is located in Hangzhou, Zhejiang province, which covers 36,000m2 area. The quality center equipped with LC-MS( Waters),HPLC(Ag...