J & K SCIENTIFIC LTD.
                            
                            Telephone18210857532; 18210857532
                            Websitehttps://www.jkchemical.com
                         
                        
                            
                                Alfa Aesar
                            
                            Telephone400-6106006 
                            Websitehttp://chemicals.thermofisher.cn
                         
                        
                            
                                TCI (Shanghai) Development Co., Ltd.
                            
                            Telephone021-67121386 
                            Websitehttps://www.tcichemicals.com/CN/zh/
                         
                        
                            
                                Energy Chemical
                            
                            Telephone021-021-58432009 400-005-6266
                            Websitehttp://www.energy-chemical.com
                         
                        
                            
                                Sinopharm Chemical Reagent Co,Ltd.
                            
                            Telephone86-21-63210123 
                            Websitehttp://www.reagent.com.cn
                         
                         
                            
                                Chengdu HappySyn Pharmaceutical Technology Co., Ltd.
                            
                            Telephone028-85114309 18982182443
                            Websitehttp://www.happysyn.com
                         
                        
                            
                                9ding chemical ( Shanghai) Limited
                            
                            Telephone4009209199 
                            Websitehttp://www.9dingchem.com
                         
                        
                            
                                Shanghai Aladdin Bio-Chem Technology Co.,LTD
                            
                            Telephone400-6206333 13167063860
                            Websitehttp://www.aladdin-e.com/
                         
                        
                            
                                Yancheng Orgunion Pharmaceutical Sci & Tech Co., Ltd.
                            
                            Telephone0515-89701588 13770166955
                            Websitehttp://www.orgunion.com
                         
                        
                            
                                Bide Pharmatech Ltd.
                            
                            Telephone400-164-7117 13681763483
                            Websitehttp://www.bidepharm.com
                         
                         
                            
                                Shanghai Na Qian Chemical Technology Co. Ltd.
                            
                            Telephone0373-7129549; 13598610367
                            Websitehttps://www.chemicalbook.com/supplier/11167012/
                         
                        
                            
                                Shanghai YuanYe Biotechnology Co., Ltd.
                            
                            Telephone021-61312847; 18021002903
                            Websitehttp://www.shyuanye.com
                         
                        
                            
                                Shanghai QianYan Bio-technology Co., Ltd
                            
                            Telephone02781293128 
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList19348/0_EN.htm
                         
                        
                            
                                Chengdu Dianchun Technology Co., Ltd
                            
                            Telephone400-1166-196 15982826727
                            Websitehttp://www.hx-r.com
                         
                        
                            
                                Shanghai Chaolan Chemical Technology Center
                            
                            Telephone021-QQ:65489617 15618227136
                            Websitehttp://www.atkchemical.com/
                         
                         
                            
                                Amadis Chemical Company Limited
                            
                            Telephone571-89925085 
                            Websitehttp://www.amadischem.com
                         
                        
                            
                                ShenZhen Dieckmann Bio-Pharm Co.,LTD
                            
                            Telephone+86-0755-89213952 18123776296
                            Websitehttp://www.dkmchem.com
                         
                        
                            
                                Shanghai Zhen Li Biological Technology Co., Ltd
                            
                            Telephone021-16621358918; 18516310516
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList30395/0_EN.htm