Sigma-Aldrich
Telephone021-61415566 800-8193336
Websitehttps://www.sigmaaldrich.cn
Zhengzhou Alpha Chemical Co. LTD
Telephone0371-0371-53732842 13383863444
Websitehttps://www.chemicalbook.com/supplier/23629674/
Energy Chemical
Telephone021-58432009 400-005-6266
Websitehttp://www.energy-chemical.com
Organtec Ltd
Telephone010-89719903 18511074324
Websitehttp://www.organtec.cn
Zhengzhou Akem Chemical Co., Ltd
Telephone 13303867194
Websitehttp://acmechem.cn/
