Artis Biotech Co. Ltd.
Telephone19138486554 18108108965
Websitehttp://www.artis-standards.com/
Shanghai YuanYe Biotechnology Co., Ltd.
Telephone021-61312847; 18021002903
Websitehttp://www.shyuanye.com
Energy Chemical
Telephone021-58432009 400-005-6266
Websitehttp://www.energy-chemical.com
LGC Science (Shanghai) Ltd.
Telephone 17717235263
Websitehttps://www.lgcstandards.com/CN/en/Pharmaceutical/cat/279492
TLC Pharmaceutical Standards Ltd.
Telephone18012923235; 18012923235
Websitehttp://www.tlcstandards.com