Wuxi Zhongkun Biochemical Technology Co., Ltd.
                            
                            Telephone0510-85629785 18013409632
                            Websitehttp://www.reading-chemicals.com
                         
                        
                            
                                Hangzhou Huarong Pharm Co., Ltd.
                            
                            Telephone571-86758373 +8613588754946
                            Websitehttps://www.huarongpharm.com/
                         
                        
                            
                                Guangzhou Dreampharm Biotechnology Co., Ltd.
                            
                            Telephone020-36607679 19925672674
                            Websitehttp://www.dmstandards.com/
                         
                        
                            
                                Jinan blalong chemical co. LTD
                            
                            Telephone 2710913286@.com
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1068244/0_EN.htm
                         
                        
                            
                                Shanghai Payne Pharmaceutical Technology Co.Ltd
                            
                            Telephone021-58123769 17721400256
                            Websitehttp://www.paynepharm.com
                         
                         
                            
                                Shanghai Payne Pharmaceutical Technology Co.Ltd
                            
                            Telephone021-58123769 18678586262
                            Websitehttp://www.paynepharm.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
                         
                        
                            
                                Foshan Treasure Biotechnology Co., Ltd
                            
                            Telephone0757-85921206 18520245316
                            Websitehttp://www.fsbn-bio.com/
                         
                        
                            
                                Huaihua Yuanyanda Biotechnology Co., Ltd
                            
                            Telephone 18711085600
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1118979/0_EN.htm
                         
                         
                            
                                Shenzhen Qingtian Biotechnology Co, Ltd.
                            
                            Telephone18823167005 18162969855
                            Website
                         
                        
                            
                                Huaihua Yuanyanda Biotechnology Co., Ltd
                            
                            Telephone 18229999901
                            Website
                         
                        
                            
                                Beijing Comparison Pharmaceutical Technology Co., Ltd
                            
                            Telephone010-010-52878169 15801002657
                            Websitehttp://www.bjcomparison.com