英文名称
                            Betamethasone 21-Phosphate Disodium Salt
                            
                            
                            
                         
                        
                        
                            分子式
                            C22 H28 F O8 P . 2 Na
                            
                            
                         
                        
                        
                        
                        
                        
                            
                        
                     
                    
                        
                            
                            
                                Standards; Steroids; Pharmaceutical/API Drug Impurities/Metabolites;
                            
                         
                     
                    
                        
                            
                            
                                Betamethasone 21-Phosphate Disodium Salt (Dexamethasone Sodium Phosphate EP Impurity B) is a Betamethasone derivative. It is a glucocorticoid steroid with anti-inflammatory and immunosuppressive properties which can be used in treatment of asthma and itching.