J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Labnetwork lnc.
Telephone+86-27-50766799 +8618062016861
Websitewww.labnetwork.com
Shanghai Haohong Pharmaceutical Co., Ltd.
Telephone400-8210725 4008210725
Websitehttps://www.leyan.com/
Aikon International Limited
Telephone 18626450290
Websitehttp://www.aikonchem.com
Shaanxi Didu New Material Co., Ltd
Telephone029-029-63373950 15353716720
Website
Shanghai Aladdin Biochemical Technology Co.,Ltd.
Telephone400-6206333 1316706386
Websitehttp://www.aladdin-e.com/
Merck KGaA
Telephone(+86) 21 2033 8288
Websitehttp://www.sigmaaldrich.cn