J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Sigma-Aldrich
Telephone021-61415566 800-8193336
Websitehttps://www.sigmaaldrich.cn
Amadis Chemical Company Limited
Telephone571-89925085
Websitehttp://www.amadischem.com
Aikon International Limited
Telephone025-66028182 18112977050
Websitehttp://www.aikonchem.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
Henan Pumei Jihua Pharmaceutical Technology Co., Ltd.
Telephone037188900765 18037465274
Websitehttp://www.pumeijihua.com
Changzhou Yinghao Technology Development Co., Ltd
Telephone 15151934985
Websitehttp://www.yingsapharm.com/
Shanghai Kaiwei Chemical Technology Co., Ltd.
Telephone021-58461859 15821823057
Websitehttp://www.aivichem.com
Beijing Stronger Science Co., Ltd.
Telephone0531-88924771 15614660963
Websitehttps://www.nuoxiansheng.com/
Shanghai Haohong Scientific Co., Ltd.
Telephone400-400-8210725 17717813675;
Websitehttps://www.leyan.com/
Shaanxi Didu New Material Co., Ltd
Telephone029-81145920 15353716720
Website
Aromsyn Co., Ltd.
Telephone+86-0571-85585865 +8613336024896
Websitehttps://www.aromsyn.com/