J & K SCIENTIFIC LTD.
                            
                            Telephone18210857532; 18210857532
                            Websitehttps://www.jkchemical.com
                         
                        
                            
                                Meryer (Shanghai) Chemical Technology Co., Ltd.
                            
                            Telephone021-61259138 18621169109
                            Websitehttp://www.x-labseek.com/
                         
                        
                            
                                Alfa Aesar
                            
                            Telephone400-6106006 
                            Websitehttp://chemicals.thermofisher.cn
                         
                        
                            
                                Energy Chemical
                            
                            Telephone021-021-58432009 400-005-6266
                            Websitehttp://www.energy-chemical.com
                         
                        
                            
                                Capot Chemical Co., Ltd
                            
                            Telephone+86 (0) 571 85 58 67 18 
                            Websitehttp://www.capotchem.com/
                         
                         
                            
                                Shanghai Hanhong Scientific Co.,Ltd.
                            
                            Telephone021-54306202 13764082696
                            Websitehttps://www.hanhongsci.com
                         
                        
                            
                                Shandong Xiya Chemical Co., Ltd
                            
                            Telephone4009903999 13355009207
                            Websitehttp://www.xiyashiji.com
                         
                        
                            
                                Chengdu Ai Keda Chemical Technology Co., Ltd.
                            
                            Telephone4008-755-333 18080918076
                            Websitehttp://www.aikeshiji.com
                         
                        
                            
                                T&W GROUP
                            
                            Telephone021-61551611 13296011611
                            Websitehttp://www.trustwe.com/
                         
                        
                            
                                Thermo Fisher Scientific
                            
                            Telephone800-810-5118 
                            Websitehttp://www.thermo.com.cn
                         
                         
                            
                                9ding chemical ( Shanghai) Limited
                            
                            Telephone4009209199 
                            Websitehttp://www.9dingchem.com
                         
                        
                            
                                Shanghai Aladdin Bio-Chem Technology Co.,LTD
                            
                            Telephone400-6206333 13167063860
                            Websitehttp://www.aladdin-e.com/
                         
                        
                            
                                Shanghai BeiZhuo Biotech Co., Ltd.
                            
                            Telephone021-61119791,13386096464 
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList16081/0_EN.htm
                         
                        
                            
                                Huainan Kedi Chemical Factory
                            
                            Telephone0554-2106669 
                            Websitehttp://www.kedichem.com
                         
                        
                            
                                Bide Pharmatech Ltd.
                            
                            Telephone400-164-7117 13681763483
                            Websitehttp://www.bidepharm.com
                         
                         
                            
                                Beijing Guofang Dingsheng Technology Co., Ltd.
                            
                            Telephone18610472091 
                            Websitehttp://www.gfdschem.com
                         
                        
                            
                                Chengdu HuaXia Chemical Reagent Co. Ltd
                            
                            Telephone400-1166-196 13458535857
                            Websitehttp://www.hx-r.com
                         
                        
                            
                                Wuhan Pengo Technology.,Ltd.
                            
                            Telephone027-60707801 13628634921
                            Websitehttp://www.boronicgroup.com