J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Amatek Scientific Co. Ltd.
Telephone0512-56316828 4008675858
Websitehttp://www.amateksci.com
Zhengzhou kangnuochenrui Chemical Technology Co.,Ltd
Telephone 18210788515
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList17156/0.htm
Aikon International Limited
Telephone 18651614124
Websitehttps://www.aikonchem.com/
Hangzhou MolCore BioPharmatech Co.,Ltd.
Telephone+86-057181025280; +8617767106207
Websitehttps://www.molcore.com/