J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Chemsky (shanghai) International Co.,Ltd
Telephone021-50135380
Websitehttp://www.shchemsky.com
Shanghai Sphchem Co., Ltd.
Telephone21-21-56491756 13512199871
Websitehttp://www.panhongchem.com
Sigma-Aldrich
Telephone021-61415566 800-8193336
Websitehttps://www.sigmaaldrich.cn
Shanghai Changyan Chem & Tech Co., Ltd.
Telephone021-021-20242659 18930833303
Websitehttp://www.changyanchem.com
Shanghai Hongye Biotechnology Co. Ltd
Telephone400-9205774
Websitehttp://www.glpbio.cn/
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 13028896684
Websitehttps://www.rrkchem.com
Hebei Yanxi Chemical Co., Ltd.
Telephone+86-17531190177; +8617531190177
Websitehttps://www.chemicalbook.com/manufacturer/hebei-yanxi-chemical-283/
ChemeGen(Shanghai) Biotechnology Co.,Ltd.
Telephone 18818260767
Websitehttp://www.chemegen.com
CONIER CHEM AND PHARMA LIMITED
Telephone +8618523575427
Websitehttp://www.conier.com/