Shanghai Kewel Chemical Co., Ltd.
Telephone021-64609169 18901607656
Websitehttp://www.kewelchem.com/
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
TOSUN PHARM
Telephone020-61855200 13326451905
Websitehttp://www.toref.cn/
QUALITY CONTROL SOLUTIONS LTD.
Telephone0755-66853366; 13670046396
Websitehttps://www.qcsrm.com
Shandong Mopai Biotechnology Co., Ltd
Telephone 13070690626
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1804467/0.htm
Cato Research Chemicals Inc.
Telephone 13342851930
Websitehttps://www.cato-chem.com/
TLC Pharmaceutical Standards Ltd.
Telephone 18012923235
Websitehttp://www.tlcstandards.com
Zibo Hangyu Biotechnology Development Co., Ltd
Telephone+86-0533-2185556 +8617865335152
Websitehttps://www.chemicalbook.com/manufacturer/hangyu-chemical-25178/
Guangzhou Tosun Pharmaceutical Limited
Telephone +8618922120635
Websitehttp://toref-standards.com
