ShangHai Etrif Chemical Co.ltd.is situated in high-tech industrial development zone in ShangHai, it is a high-tech enterprise specialized in the R&D and production of polypeptide chemicals and related products. The company owns one research institution and one product production base, and it is capable of producing products from gram, kilogram, 100 kilogram to ton grade. The company has got the ISO9001-2008 Management System Certification and import-export operation right. Based on perfect quality and environment management system, we can assure our customers of high-quality products. For years' effort, the company has become the largest manufacturer and supplier of polypeptide chemicals in the world