Guangzhou Dreampharm Biotechnology Co., Ltd.
Telephone020-36607679 17825480238
Websitehttp://www.dmstandards.com/
Energy Chemical
Telephone021-58432009 400-005-6266
Websitehttp://www.energy-chemical.com
Shanghai isotope chemical co.,ltd
Telephone021-51600108 13062666369
Websitehttps://www.isotopechem.com/
Shanghai Beiwanta Biotechnology Co., Ltd.
Telephone021-67187366 19901745723
Websitehttp://www.bwtlab.com/
SHANGHAI ZZBIO CO., LTD.
Telephone15102117276 19921389125
Websitehttps://www.zzsrm.cn/
Cato Research Chemicals Inc.
Telephone 18933936954
Websitehttps://www.catorm.com/
TLC Pharmaceutical Standards Ltd.
Telephone18012923235; 18012923235
Websitehttp://www.tlcstandards.com
