Traced to the year 1998, Chengdu ZY Biochem has been focusing on manufacture of polypeptide intermediates for more than 20 years. After years' development, we have been the largest manufacturer of protected amino acids in Chinese market. Furthermore, we are also providing high-value oligopeptides, side-chain products. Now we have established long term collaborations with hundreds of peptide drug development and manufacture enterprises located in China, USA, EU, India, etc. relying on our best qualities and services. For all of our regular products, we performed impurities research, residualy solvents research and related process and analysis methods validation, which can highly assure the stable quality and supply of our products. 

Highest specifications in the field, with impurities, residual solvents controlled strictly; 

(2) Commecialized manufacture process and experience, assuring stable quality and supply

(3) Completed quality system supporting on customer audits

(4) Perfect service in the full process of collaboration

(5) GMP-like and ISO certified management systems

(6) More than 20 controlled items on a typical COA