Beijing Yan Nuo XinCheng Chemical Co., Ltd.
Telephone86-10-82830276
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList15334/0.htm
Sigma-Aldrich
Telephone021-61415566 800-8193336
Websitehttps://www.sigmaaldrich.cn
3A Chemicals
Telephone400-668-9898
Websitehttp://www.3achem.com
Zhengzhou Alfa Chemical Co.,Ltd
Telephone +8618530059196
Websitehttps://www.chemicalbook.com/manufacturer/zhengzhou-alfa-chemical-276/
Zhengzhou Alpha Chemical Co. LTD
Telephone0371-0371-53732842 13383863444
Websitehttps://www.chemicalbook.com/supplier/23629674/