Shaanxi DIDU pharmaceutical and Chemical Co., Ltd
Telephone029-029-81120477 17792793610
Websitehttp://www.dideu.cn
Shenzhen Excellent Biomedical Technology Co., Ltd.
Telephone0755-26050679 18318671572
Websitehttps://www.ex-biotech.com/
Cato Research Chemicals Inc.
Telephone81960175 18933936954
Websitehttps://www.cato-chem.com/
Hubei Rhema Reference Materials Technology Co., Ltd.
Telephone15787879035 15787875101
Websitehttps://www.chemicalbook.com/supplier/138770565/
TLC Pharmaceutical Standards Ltd.
Telephone 18012923235
Websitehttps://www.tlcstandards.com/
