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
                         
                        
                            
                                Hunan Hui Bai Shi Biotechnology Co., Ltd.
                            
                            Telephone0731-85526065 13308475853
                            Websitehttp://www.hnhbsj.com/
                         
                        
                            
                                Thermo Fisher Scientific
                            
                            Telephone800-810-5118 
                            Websitehttp://www.thermo.com.cn
                         
                         
                            
                                Shanghai Aladdin Bio-Chem Technology Co.,LTD
                            
                            Telephone400-6206333 13167063860
                            Websitehttp://www.aladdin-e.com/
                         
                        
                            
                                Shanghai Huikai Chemical Technology Co., Ltd.
                            
                            Telephone021-61995394  18916691159 
                            Websitehttp://www.chemicalsea.com
                         
                        
                            
                                Wuhan Chemduro Pharm Tech Co. Ltd.
                            
                            Telephone18040571231/1402788087 
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList16292/0_EN.htm
                         
                        
                            
                                Chengdu HuaXia Chemical Reagent Co. Ltd
                            
                            Telephone400-1166-196 13458535857
                            Websitehttp://www.hx-r.com
                         
                        
                            
                                Codow Chemical Co.,Ltd.
                            
                            Telephone 18620099427
                            Websitehttp://www.howeipharm.com
                         
                         
                            
                                Shanghai Qiao Chemical Science Co., Ltd
                            
                            Telephone021-58892003 
                            Websitehttps://www.chemicalbook.com/supplier/10168672/1.htm
                         
                        
                            
                                Shanghai YuanYe Biotechnology Co., Ltd.
                            
                            Telephone021-61312847; 18021002903
                            Websitehttp://www.shyuanye.com
                         
                        
                            
                                Shanghai Civic Chemical Technology Co., Ltd.
                            
                            Telephone021-34053660 
                            Websitehttp://www.civi-chem.com
                         
                        
                            
                                Jinan Samuel Pharmaceutical Co., Ltd.
                            
                            Telephone0531-88821801 15192360884
                            Websitehttp://www.samuelpharma.com
                         
                        
                            
                                Aikon International Limited
                            
                            Telephone025-58851090 15955137747
                            Websitehttp://www.aikonchem.com
                         
                         
                            
                                Shanghai Jizhi Biochemical Technology Co. Ltd.
                            
                            Telephone4009004166/18616739031 18616739031
                            Websitehttp://www.acmec-e.com/
                         
                        
                            
                                Shenzhen GeneSeqTools Bioscience & Technology Co. Ltd.
                            
                            Telephone0755-23251735 13302967066
                            Websitehttp://www.geneseqtools.cn
                         
                        
                            
                                Dideu Industries Group Limited
                            
                            Telephone+86-29-89586680 +86-15129568250
                            Websitehttps://www.dideu.com