Shanghai Maruhua Science and Technology Co. Ltd.
Telephone 18721745940
Websitehttp://www.api-chem.com
Henan Dowon Chemical Technology Co., Ltd.
Telephone 16696119288
Websitehttp://www.dowon.com.cn
Shanghai Huasige Pharmaceutical Technology Co., LTD
Telephone13611612777
Websitehttps://www.chemicalbook.com/supplier/25242127/
Shanghai alkynechem Co., Ltd.
Telephone086-021-15821262312 15821262312
Websitehttp://www.alkynechem.com
Shanghai Scibiotron Pharmaceutical Co., Ltd
Telephone+86-16621589600
Websitewww.scibiotron.com