Shanghai Bolsen Biotechnology Co., LTD
                            
                            Telephone021-67681877 13166061152
                            Websitehttp://www.bioesn.net/
                         
                        
                            
                                J & K SCIENTIFIC LTD.
                            
                            Telephone18210857532; 18210857532
                            Websitehttps://www.jkchemical.com
                         
                        
                            
                                TCI (Shanghai) Development Co., Ltd.
                            
                            Telephone021-67121386 
                            Websitehttps://www.tcichemicals.com/CN/zh/
                         
                        
                            
                                Sinopharm Chemical Reagent Co,Ltd.
                            
                            Telephone86-21-63210123 
                            Websitehttp://www.reagent.com.cn
                         
                        
                            
                                Hunan Hui Bai Shi Biotechnology Co., Ltd.
                            
                            Telephone0731-85526065 13308475853
                            Websitehttp://www.hnhbsj.com/
                         
                         
                            
                                Maya High Purity Chemicals
                            
                            Telephone+86 (573) 82222445  (0)18006601000 452520369 
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList15221/0_EN.htm
                         
                        
                            
                                Hangzhou Yuhao Chemical Technology Co., Ltd
                            
                            Telephone0571-82693216 
                            Websitehttp://www.chemyuhao.com
                         
                        
                            
                                ShangHai YuanYe Biotechnology Co., Ltd.
                            
                            Telephone021-61312847 13636370518
                            Websitehttp://www.shyuanye.com
                         
                        
                            
                                9ding chemical ( Shanghai) Limited
                            
                            Telephone4009209199 
                            Websitehttp://www.9dingchem.com
                         
                        
                            
                                Shanghai Ruji Biology Technology Co., Ltd.
                            
                            Telephone+86-21-65211385-8001  36031160 
                            Websitehttp://www.chinaruji.com/
                         
                         
                            
                                Nanjing Dulai Biotechnology Co., Ltd.
                            
                            Telephone025-846993838003-8003 18013301590
                            Websitehttp://www.njduly.com
                         
                        
                            
                                Shanghai BeiZhuo Biotech Co., Ltd.
                            
                            Telephone021-61119791,13386096464 
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList16081/0_EN.htm
                         
                        
                            
                                Shanghai JONLN Reagent Co., Ltd.
                            
                            Telephone400-0066400 13621662912
                            Websitehttp://www.jonln.com
                         
                        
                            
                                Shanghai Macklin Biochemical Co.,Ltd.
                            
                            Telephone 15221275939
                            Websitehttp://www.macklin.cn
                         
                        
                            
                                Sigma-Aldrich
                            
                            Telephone021-61415566 800-8193336
                            Websitehttps://www.sigmaaldrich.cn
                         
                         
                            
                                Beijing NuoqiYa Biotechnology Co., Ltd.
                            
                            Telephone4000-819-385   010-62329685  13718666987 
                            Websitehttp://www.bjoka-vip.com
                         
                        
                            
                                Shanghai Send Pharmaceutical Technology Co., Ltd.
                            
                            Telephone021-58088081 Q3382968513
                            Websitehttp://www.shsendpharma.com
                         
                        
                            
                                Raw material medicin reagent co.,Ltd
                            
                            Telephone 
                            Websitehttp://www.njromanme.com