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
Quality Control Solutions Ltd.
Telephone0755-66853366 13670046396
Websitehttp://www.qcsrm.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 13028896684;
Websitehttps://www.rrkchem.com
Shandong WorldSun Biological Technology Co., Ltd.
Telephone0531-88723173 18596073690
Websitehttps://www.worldsun-chem.com/
Energy Chemical
Telephone400-0056266
Websitehttp://www.energy-chemical.com
QUALITY CONTROL SOLUTIONS LTD.
Telephone+86-0755-66853366 +86-13670046396
Websitehttps://www.qcsrm.com
Nanjing webright Pharmaceutical Technology Co., Ltd
Telephone18066048793; 18014498793
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1493865/0_EN.htm
Cato Research Chemicals Inc.
Telephone020-81960175-877 18933936954
Websitehttps://www.cato-chem.com/
Wuhan Jingkangen Biomedical Technology Co., Ltd
Telephone13720134139 086-15871494362 13720134139
Websitehttps://www.jknbiochem.com
Changsha Fuzhen Biotechnology Co.，LTD
Telephone15111215862 18229892877
Websitehttp://www.fuzhenbiochem.com/
Olix ( Hubei) Pharmaceutical Technology Co., Ltd
Telephone17316404525 17316404525
Websitehttps://www.olix.cn
Changzhou Xianglong Pharmaceutical Technology Co., Ltd.,
Telephone18915873328 18915873328
Websitehttps://www.xianglongpharm.com/
LGC Science (Shanghai) Ltd.
Telephone17717235263 17717235263
Websitehttps://www.lgcstandards.com/CN/en/
