J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Chemsky（shanghai）International Co.,Ltd.
Telephone021-50135380
Websitehttp://www.shchemsky.com
Beijing Comparison Pharmaceutical Technology Co., Ltd
Telephone010-010-52878169 15801002657
Websitehttp://www.bjcomparison.com
Shanghai TaoSu Biochemical Technology Co., Ltd.
Telephone021-33632979
Websitehttp://www.tsbiochem.com
ChemStrong Scientific Co.,Ltd
Telephone0755-0755-66853366 13670046396
Websitehttp://www.chem-strong.com
Shanghai EFE Biological Technology Co., Ltd.
Telephone021-65675885 18964387627
Websitehttp://www.efebio.com
Shanghai Hongye Biotechnology Co. Ltd
Telephone400-9205774
Websitehttp://www.glpbio.cn/
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
Guangzhou Dreampharm Biotechnology Co., Ltd.
Telephone020-36607679 17825480238
Websitehttp://www.dmstandards.com/
Hubei Jusheng Technology Co.,Ltd.
Telephone18871490254
Websitehttp://www.hubeijusheng.com
Jinan blalong chemical co. LTD
Telephone 2710913286@.com
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1068244/0.htm
ChemeGen(Shanghai) Biotechnology Co.,Ltd.
Telephone 18818260767
Websitehttp://www.chemegen.com
Shenzhen ruikai de biotechnology co., ltd.
Telephone0755-61348847 17820674378
Websitehttp://www.real-chemstandards.com
Wuxi Helen Biotechnology Co., Ltd.,
Telephone0510-85629785 18013409632
Websitehttp://www.reading-chemicals.com
Energy Chemical
Telephone021-58432009 400-005-6266
Websitehttp://www.energy-chemical.com
Guangzhou Juntang Technology Co., Ltd
Telephone020-36607679 13502246435
Websitehttp://www.dmstandards.com
Hubei Guangao Biotechnology Co., Ltd
Telephone027-027-59223056 18162699093
Websitehttp://www.guangaobio.com/
Hubei xingongli Chemical Co., Ltd
Telephone027-59106151 15172325309
Websitehttp://www.xinhonglichem.com/
