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 TaoSu Biochemical Technology Co., Ltd.
Telephone021-33632979
Websitehttp://www.tsbiochem.com
Cato Research Chemicals Inc.
Telephone020-81960175
Websitehttp://www.cato-chem.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 13028896684
Websitehttps://www.rrkchem.com
TOSUN PHARM
Telephone020-61855200 13326451905
Websitehttp://www.toref.cn/
Guangzhou Dreampharm Biotechnology Co., Ltd.
Telephone020-36607679 17825480238
Websitehttp://www.dmstandards.com/
Shenzhen Topbatt Chemical Co., Ltd
Telephone 15616500668
Websitehttp://www.topbatt.net
Energy Chemical
Telephone021-58432009 400-005-6266
Websitehttp://www.energy-chemical.com
Foshan Treasure Biotechnology Co., Ltd
Telephone0757-85921206 18520245316
Websitehttp://www.fsbn-bio.com/
QUALITY CONTROL SOLUTIONS LTD.
Telephone 13670046396
Websitehttps://www.qcsrm.com
Shanghai YuZn Pharm. Technology Co.,Ltd.
Telephone15921286451; 15921286451
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList642122/0.htm
Shanghai Tachizaki Biomedical Research Center
Telephone 18014399201
Websitehttp://www.chemlab-tachizaki.com/
Nanjing Huanuo Biomedical Technology Co., Ltd
Telephone 18913906212
Websitehttp://www.hnstandards.com/
Hubei Qingbei Yunyan Pharmaceutical Technology Co., Ltd
Telephone 18162595016
Websitehttps://www.chemicalbook.com/supplier/25457231/
Yantai Lianhua Technology Co., Ltd
Telephone 15552437730
Website
Guangzhou Zhenlin Pharmaceutical Technology Co., Ltd
Telephone18102736234 18102736234
Website
Guangzhou Tosun Pharmaceutical Limited
Telephone +8618922120635
Websitehttp://toref-standards.com
