Shanghai Synthfine Chemical Co.,Ltd
                            
                            Telephone 15921303235
                            Websitehttp://www.synthfine.com
                         
                        
                            
                                Shanghai YuanYe Biotechnology Co., Ltd.
                            
                            Telephone021-61312847; 18021002903
                            Websitehttp://www.shyuanye.com
                         
                        
                            
                                Shanghai Xuerong Chemical Technology Co., LTD
                            
                            Telephone 18201727566
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList717026/0_EN.htm
                         
                        
                            
                                Zhuhai Aobokai Biomedical Technology Co., Ltd.
                            
                            Telephone400-0628126 18736790110;
                            Websitehttp://www.aobchem.com.cn/
                         
                        
                            
                                Shanghai Aladdin Biochemical Technology Co.,Ltd.
                            
                            Telephone400-6206333 13167063860
                            Websitehttp://www.aladdin-e.com/
                         
                         
                            
                                Henan Mengtai Pharmaceutical Technology Co., Ltd
                            
                            Telephone176345344 7 17634854698
                            Websitehttps://www.henanmengtai.com
                         
                        
                            
                                Santa Cruz Biotechnology Inc
                            
                            Telephone021-60936350 
                            Websitehttp://www.scbt.com
                         
                        
                            
                                DAYANG CHEM (HANGZHOU) CO.,LTD
                            
                            Telephone+86-88938639 +86-17705817739
                            Websitewww.dycnchem.com