J & K SCIENTIFIC LTD.
Telephone18210857532; 18210857532
Websitehttps://www.jkchemical.com
TCI (Shanghai) Development Co., Ltd.
Telephone021-67121386
Websitehttps://www.tcichemicals.com/CN/zh/
Shanghai Longsheng chemical Co.,Ltd.
Telephone58099637 13585536065
Websitehttp://www.shlshg.com
9ding chemical ( Shanghai) Limited
Telephone4009209199
Websitehttp://www.9dingchem.com
Quality Control Solutions Ltd.
Telephone0755-66853366 13670046396
Websitehttp://www.qcsrm.com
TOSUN PHARM
Telephone61855200 13326451905
Websitehttp://www.toref.cn/
Shandong WorldSun Biological Technology Co., Ltd.
Telephone0531-88723173 18596073690
Websitehttps://www.worldsun-chem.com/
Changzhou Xianglong Pharmaceutical Technology Co., LTD
Telephone 18661161657
Websitehttp://www.xianglongpharm.com/
Cato Research Chemicals Inc.
Telephone020-81960175-877 18933936954
Websitehttps://www.cato-chem.com/
https://www.shachemlin.cn/
Telephone68080707 15021879576
Websitehttps://www.shachemlin.cn/
TLC Pharmaceutical Standards Ltd.
Telephone18012923235 18012923235
Websitehttp://www.tlcstandards.com
Hubei Yangxin Medical Technology Co., Ltd.
Telephone07143299675 13092790750
Websitehttps://www.yongstandards.com/
Hubei YoungXin Pharmaceutical Tech Co.,Ltd.
Telephone0714-3999001 17771081808
Websitehttp://www.yongstandards.com/
Shenzhen ruikai de biotechnology co., ltd.
Telephone0755-61348847 17820674378
Websitehttp://www.real-chemstandards.com.cn/