Chemsky（shanghai）International Co.,Ltd.
Telephone021-50135380
Websitehttp://www.shchemsky.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226
Websitehttps://www.rrkchem.com
HX Pharmaceutical technology co., LTD
Telephone 15671363360
Websitehttp://www.szhx-pharm.com
CHINA ISOTOPE CO., LIMITED
Telephone02151600108 13062666369
Websitehttps://www.isotopechem.com/
Nanjing Shizhou Biology Technology Co.,Ltd
Telephone 17301488900
Websitehttp://www.synzest.com
TLC Pharmaceutical Standards Ltd.
Telephone 18012923235
Websitehttps://www.tlcstandards.com/
Xibiao (Shanghai) Technology Co., Ltd
Telephone18512111473 18512111473
Websitehttps://www.xibiao-tech.com/
LGC Science (Shanghai) Ltd.
Telephone17717235263 17717235263
Websitehttps://www.lgcstandards.com/CN/en/
