Shanghai EFE Biological Technology Co., Ltd.
Telephone021-65675885 18964387627
Websitehttp://www.efebio.com
ChemeGen 中国
Telephone 18818260767
Websitehttps://www.chemegen.com
Shanghai isotope chemical co.,ltd
Telephone021-51600108 13062666369
Websitehttps://www.isotopechem.com/
Cayman Chemical Company
Telephone800-3649897
Websitehttp://www.caymanchem.com