Cheng Yi Pharmaceutical Co., Ltd is a local joint-stock enterprise with strong background, specialized in manufacturing more than 100 types of products, including medical formulations, APIs and advanced pharmaceutical intermediates and so on. Now it has became one of the largest manufacturers in anti-tumor, anti-virus, nucleoside acid and relative pharmaceutical intermediates in the world. Cheng Yi Passed audits of MHRA,TGA,according with cGMP, IS09001,ISO14001.Main Products: Azathioprine, 6-Mercaptopurine, Ribavirin, Adenosine, Clindamycin Phosphate, Acyclovir, Glucosamine HCL, Diacetone Fructose, 2-Amino-6-chloropurine etc.