J & K SCIENTIFIC LTD.
                            
                            Telephone18210857532; 18210857532
                            Websitehttps://www.jkchemical.com
                         
                        
                            
                                Meryer (Shanghai) Chemical Technology Co., Ltd.
                            
                            Telephone021-61259138 18621169109
                            Websitehttp://www.x-labseek.com/
                         
                        
                            
                                3B Pharmachem (Wuhan) International Co.,Ltd.
                            
                            Telephone821-50328103-801 18930552037
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList13285/0_EN.htm
                         
                        
                            
                                Alfa Aesar
                            
                            Telephone400-6106006 
                            Websitehttp://chemicals.thermofisher.cn
                         
                        
                            
                                Beijing HwrkChemical Technology Co., Ltd
                            
                            Telephone18515581800 18501085097
                            Websitehttp://www.hwrkchemical.com
                         
                         
                            
                                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
                         
                        
                            
                                Spectrum Chemical Manufacturing Corp.
                            
                            Telephone021-021-021-67601398-809-809-809 15221380277
                            Websitehttps://www.spectrumchemical.com/OA_HTML/index.jsp?minisite=10020&respid=22372&language=US
                         
                        
                            
                                Shanghai Macklin Biochemical Co.,Ltd.
                            
                            Telephone 15221275939
                            Websitehttp://www.macklin.cn
                         
                        
                            
                                VWR(Shanghai) Co., Ltd
                            
                            Telephone400-821-8006 
                            Websitehttps://cn.vwr.com
                         
                         
                            
                                Shanghai YuanYe Biotechnology Co., Ltd.
                            
                            Telephone021-61312847; 18021002903
                            Websitehttp://www.shyuanye.com
                         
                        
                            
                                Shanghai Witofly Chemical Co. ,Ltd.
                            
                            Telephone021-50630626 18072846723
                            Websitehttp://www.witofly.com
                         
                        
                            
                                Guangzhou Jhd Chemical Reagent Co., Ltd.
                            
                            Telephone020-84383047 
                            Websitehttp://www.jhd.com.cn
                         
                        
                            
                                3A Chemicals
                            
                            Telephone400-668-9898 
                            Websitehttp://www.3achem.com
                         
                        
                            
                                Guangdong wengjiang Chemical Reagent Co., Ltd.
                            
                            Telephone0751-2815688 13927872512
                            Websitehttp://www.wj-chem.com
                         
                         
                            
                                Shenzhen Polymeri Biochemical Technology Co., Ltd.
                            
                            Telephone+86-400-002-6226 +86-13028896684;
                            Websitehttps://www.rrkchem.com
                         
                        
                            
                                Jiangsu aikang biomedical research and development co., LTD
                            
                            Telephone025-58859352 13155353615
                            Websitehttp://www.aikonchem.com/
                         
                        
                            
                                Hefei TNJ Chemical Industry Co.,Ltd.
                            
                            Telephone+86-0551-65418671 +8618949823763
                            Websitehttps://www.tnjchem.com