J & K SCIENTIFIC LTD.
Telephone18210857532 18210857532
Websitehttps://www.jkchemical.com
Chemsky(shanghai)International Co.,Ltd.
Telephone021-50135380
Websitehttp://www.shchemsky.com
Shanghai TaoSu Biochemical Technology Co., Ltd.
Telephone021-33632979
Websitehttp://www.tsbiochem.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 13028896684;
Websitehttps://www.rrkchem.com
Tianmen Hengchang Chemical Co., Ltd
Telephone027-59322316 15172518801
Websitehttp://www.tmhchg.com/
Hubei Qifei Pharmaceutical Chemical Co., Ltd
Telephone027-59322506 18071128681
Websitehttp://www.qf-api.com
LGC Science (Shanghai) Ltd.
Telephone 17717235263
Websitehttps://www.lgcstandards.com/CN/en/Pharmaceutical/cat/279492
Hubei Chenghai Chemical Co., Ltd
Telephone027-59220433 18327245847
Websitehttps://www.hbchenghai.com