J & K SCIENTIFIC LTD.
                            
                            Telephone18210857532; 18210857532
                            Websitehttps://www.jkchemical.com
                         
                        
                            
                                Meryer (Shanghai) Chemical Technology Co., Ltd.
                            
                            Telephone021-61259138 18621169109
                            Websitehttp://www.x-labseek.com/
                         
                        
                            
                                Energy Chemical
                            
                            Telephone021-021-58432009 400-005-6266
                            Websitehttp://www.energy-chemical.com
                         
                        
                            
                                Shandong Xiya Chemical Co., Ltd
                            
                            Telephone4009903999 13355009207
                            Websitehttp://www.xiyashiji.com
                         
                        
                            
                                Thermo Fisher Scientific
                            
                            Telephone800-810-5118 
                            Websitehttp://www.thermo.com.cn
                         
                         
                            
                                Jiangsu Aikon Biopharmaceutical R&D co.,Ltd.
                            
                            Telephone025-66028182 18626450290
                            Websitehttp://www.aikonchem.com
                         
                        
                            
                                Sigma-Aldrich
                            
                            Telephone021-61415566 800-8193336
                            Websitehttps://www.sigmaaldrich.cn
                         
                        
                            
                                Shandong Ono Chemical Co., Ltd.
                            
                            Telephone0539-6362799 20) 
                            Websitehttp://www.onochem.com
                         
                        
                            
                                Shenzhen Polymeri Biochemical Technology Co., Ltd.
                            
                            Telephone+86-400-002-6226 +86-13028896684;
                            Websitehttps://www.rrkchem.com
                         
                        
                            
                                Dayang Chem (Hangzhou) Co.,Ltd.
                            
                            Telephone+86-0571-88938639 +8617705817739
                            Websitehttps://www.dycnchem.com/
                         
                         
                            
                                Career Henan Chemica Co
                            
                            Telephone+86-0371-86658258 +8613203830695
                            Websitehttps://www.coreychem.com/
                         
                        
                            
                                CONIER  CHEM AND PHARMA LIMITED
                            
                            Telephone +8618523575427
                            Websitehttp://www.conier.com/
                         
                        
                            
                                Hubei Baidu Chemical Co., Ltd
                            
                            Telephone027-59106051 13627137652
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList329110/0_EN.htm
                         
                        
                            
                                JiangSu Star Science Co.,Ltd
                            
                            Telephone400-605-7200 15335295587
                            Websitehttps://www.b2star.com/
                         
                        
                            
                                Shaanxi Dideu Newmaterial Co., Ltd.
                            
                            Telephone029-63373950 17392213970
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1184346/0_EN.htm
                         
                         
                            
                                Shanghai Yingxin laboratory equipment Co., Ltd
                            
                            Telephone021-021-59178156 15300768757
                            Websitehttp://www.yingxinbio.com/
                         
                        
                            
                                Shanghai Haohong Scientific Co., Ltd.
                            
                            Telephone400-8210725 4008210725
                            Websitehttps://www.leyan.com/
                         
                        
                            
                                Shanghai Guchen Biotechnology Co., LTD
                            
                            Telephone021-34675735 19147740836
                            Websitehttp://www.shgcsw-edu.com