J & K SCIENTIFIC LTD.
Telephone18210857532 18210857532
Websitehttps://www.jkchemical.com
Chemsky（shanghai）International Co.,Ltd.
Telephone021-50135380
Websitehttp://www.shchemsky.com
S.Z. PhyStandard Bio-Tech. Co., Ltd.
Telephone0755-83725681-603
Websitehttp://www.phystandard.com.cn
Shanghai CR Corporation Limited
Telephone13917420128 13062833949
Websitehttp://www.crcorporation.cn
Shenzhen SUNGENING Bio-Medical Co., Ltd.
Telephone0755-28967200 13631290199
Websitehttps://sungenmed.com/
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226
Websitehttps://www.rrkchem.com
CR Corporation Limited
Telephone
Websitehttp://www.crcorporation.cn/
ANHUI WITOP BIOTECH CO., LTD
Telephone +8618071025641
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList418627/0_EN.htm
Guangzhou Dreampharm Biotechnology Co., Ltd.
Telephone020-36607679; 13502246435
Websitehttp://www.dmstandards.com/
Yangzhou Changhua Biotechnology Co., Ltd.
Telephone15189846850 13815846020
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList31331/0_EN.htm
Jinan blalong chemical co. LTD
Telephone 2710913286@qq.com
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1068244/0_EN.htm
Hefei fuya biotechnology co. LTD
Telephone 18096409024
Websitehttp://www.purerechem.com
Energy Chemical
Telephone400-0056266
Websitehttp://www.energy-chemical.com
Guangzhou Juntang Technology Co., Ltd
Telephone020-36607679 13502246435
Websitehttp://www.dmstandards.com
Shanghai Easy CDMO Co.,Ltd
TelephoneInfo@easycdmo.com 13564957716
Website
SiChuan HHTC Biological Technology Co., LTD
Telephone15982498737 18380486776
Websitehttps://isite.baidu.com/site/wjzk1psoc/014ffe31-680f-4594-a11e-8b7bb4370b44?wid=2e4c17cf96c4477a9081d59ab350a52a_0_0
Shenzhen ruikai de biotechnology co., ltd.
Telephone0755-61348847 17820674378
Websitehttp://www.real-chemstandards.com.cn/
LGC Science (Shanghai) Ltd.
Telephone17717235263 17717235263
Websitehttps://www.lgcstandards.com/CN/en/
