Shanghai Haohong Pharmaceutical Co., Ltd.
Telephone400-8210725 4008210725
Websitehttps://www.leyan.com/
Shanghai Huici Pharmaceutical Technology Co., LTD
Telephone133-31922809 19372841038
Websitehttp://www.pharmahuici.com
shanghai Yanfeng biochemical technology Co.,LTD
Telephone13611955358 17721070236
Websitehttp://www.yanfenbio.com/
Shandong fen Boyu Biotechnology Co.,LTD
Telephone13356310019 13356310019;
Websitehttps://www.chemicalbook.com/supplier/25479786/
Jilin Chinese Academy of Sciences-yanshen Technology
Telephone 18143011203
Websitehttp://www.chemextension.com/
Shandong Dayou Pharmaceutical Research and Development Co., Ltd.
Telephonedayouchem@126.com 15165037910
Website
Henan Mengtai Pharmaceutical Technology Co., Ltd
Telephone17634413542
Websitehttps://mengtaichem.com