J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Chemsky（shanghai）International Co.,Ltd.
Telephone021-50135380
Websitehttp://www.shchemsky.com
ChemStrong Scientific Co.,Ltd
Telephone0755-0755-66853366 13670046396
Websitehttp://www.chem-strong.com
Finetech Industry Limited
Telephone027-87465837 19945049750
Websitehttps://www.finetechchem.com/
Shanghai Kewel Chemical Co., Ltd.
Telephone021-64609169 18901607656
Websitehttp://www.kewelchem.com/
Shenzhen SUNGENING Bio-Medical Co., Ltd.
Telephone0755-28967200 13631290199
Websitehttp://www.sungening.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
Finetech Industry Limited
Telephone+86-27-87465837 +8618971612321
Websitehttps://www.finetechnology-ind.com/
Chongqing Chemdad Co., Ltd
Telephone+86-023-6139-8061 +86-86-13650506873
Websitehttp://www.chemdad.com/
SHENZHEN PHYSTANDARD BIO-TECH CO.,LTD
Telephone0755-0755-0755-83725350 13380397412
Websitehttp://www.sincopharmachem.com/
Shanghai Sunway Pharmaceutical Technology Co.,Ltd.
Telephone021-51816796-820 13611835272
Websitehttp://www.sunwaypharm.com/
Guangzhou Yunmen Biotechnology Co., Ltd
Telephone18902340307 18902340307
Websitehttp://www.yx-biotech.cn/
QUALITY CONTROL SOLUTIONS LTD.
Telephone0755-66853366; 13670046396
Websitehttps://www.qcsrm.com
Guangdong wengjiang Chemical Reagent Co., Ltd.
Telephone0751-2815987 13927875076
Websitehttp://www.wj-chem.com
Beijing Qinling Pharmaceutical Co., Ltd.
Telephone010-61241352 18901327973
Websitehttp://www.qlmed.com/
Cato Research Chemicals Inc.
Telephone020-81960175-877 18933936954
Websitehttps://www.cato-chem.com/
LGC Science (Shanghai) Ltd.
Telephone 17717235263
Websitehttps://www.lgcstandards.com/CN/en/Pharmaceutical/cat/279492
Nanjing Huanuo Biomedical Technology Co., Ltd
Telephone 18913906212
Websitehttp://www.hnstandards.com/
