Sigma-Aldrich
Telephone021-61415566 800-8193336
Websitehttps://www.sigmaaldrich.cn
3A Chemicals
Telephone400-668-9898
Websitehttp://www.3achem.com
Shanghai Minhan Pharmaceutical Technology Co., Ltd.
Telephone 176121882
Websitehttp://www.suppliers.integle.com
Zhengzhou Alpha Chemical Co. LTD
Telephone0371-0371-53732842 13383863444
Websitehttps://www.chemicalbook.com/supplier/23629674/
Organtec Ltd
Telephone010-89719903 18511074324
Websitehttp://www.organtec.cn