boc-l-tryptophane CAS NO.13139-14-5

Hebei yanxi chemical co. LTD.  has expanded a compositive entity from initially only as a small manufacturer. The company dedicated to the development, production and marketing of chemicals. 
After many years of efforts, we have established stable and friendly business relations with dozens of European and American pharmaceutical companies, multinational chemical companies and importers.At home and many production plants and research and development units have established long - term commission processing and production relations.We have a number of laboratories specializing in technology development and custom synthesis, as well as some production bases, mainly in hebei, sichuan, jiangsu and shandong.
Our company possesses the right of self-support import & export, a strong technical force and advanced processing equipments. The quality of the products has been strictly inspected and all kinds of index have reached or exceeded domestic and international standards.
Looking to the future, we will adhere to the spirit of “professional, innovative, integrity, development”, and adhere to the management philosophy of “customer-orientation and pursing development via integrity” and through which to provide customers with first-class products and service. We sincerely welcome friends both at home and abroad to visit our company and hope to achieve win-win cooperation with you!