J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Chemsky（shanghai）International Co.,Ltd.
Telephone021-50135380
Websitehttp://www.shchemsky.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
Shanghai Haohong Pharmaceutical Co., Ltd.
Telephone4008210725 4008210725
Websitehttps://www.leyan.com/
ChengDu SinoStandards Bio-Tech Co.,Ltd. ，
Telephone028-83243028 19136088901
Websitehttp://www.ebuylabs.com/
Shanghai Jidu Biotechnology Co., Ltd.
Telephone 13851761812
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList285416/0.htm
Yancheng Tongming Biotechnology Co., Ltd.
Telephone 15195160625
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1089086/0.htm
LGC Science (Shanghai) Ltd.
Telephone 17717235263
Websitehttps://www.lgcstandards.com/CN/en/Pharmaceutical/cat/279492
Shanghai Yifei Biotechnology Co. , Ltd.
Telephone021-65675885 18964387627
Websitehttp://www.efebio.com
Telephone 4008-099-669
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList112975/0.htm
Telephone 58896805
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1748115/0.htm
Shandong benrite new chemical materials co.,ltd
Telephone0533-2866658 15615638350
Websitehttp://cn.benritechem.com/
