Shanghai Naiys Biological Technology Co., Ltd
Telephone 18321139117
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1927974/0_EN.htm
QUALITY CONTROL SOLUTIONS LTD.
Telephone+86-0755-66853366 +86-13670046396
Websitehttps://www.qcsrm.com
TLC Pharmaceutical Standards Ltd.
Telephone18012923235 18012923235
Websitehttp://www.tlcstandards.com
LGC Science (Shanghai) Ltd.
Telephone17717235263 17717235263
Websitehttps://www.lgcstandards.com/CN/en/
ShenZhen H&D Pharmaceutical Technology Co., LTD
Telephone +86-18627948422
Websitehttps://www.hdimpurity.com/