Shanghai Ruiyi Medical Tech Co.,Ltd was founded in 2006 as a high-tech R&D and fast growing enterprise in chemical and pharmaceutical field. Our product and service We are specializing in trimethylsilyl series, protective gruoup ，pyridine derivatives and alkyne series with over 3000 products. We also offer custom synthesis and OEM service of advanced intermediates to major pharmaceutical and industrial companies around the world. Our employee Our staff consists of highly qualified individual...