Zhengzhou Yuanli Biological Technology Co., Ltd. (Zhengzhou Sigma Chemical Co., Ltd.) founded in 2009, has been committed to R&D of chemical drugs, fine chemicals and new materials. Rapid transferation of results of new scientific research into application is typical characteristic of our company. In total, more than 30 kinds of exclusive chemicals or with largest quantity worldwide have been developed, and more than 20 kinds of chemicals are successful realized into industrial transferation.The Acridine and Decaborane series products is leading level all over the world. We supply products or services to more than 3,000 companies, universities, or research institutes in 65 countries around the world. Known as "the best company of combination of production, education and research, also the best company of transferring technology   Click for details>>