Pteridine
                            Order
                            34330-66-0
                            
                                Benzo[g]pteridine-2,4(1H,3H)-dione,  5-acetyl-9-bromo-5,10-dihydro-1,3,7,8-tetramethyl-
                            
                        
                        
                        
                        
                        
                        
                            Order
                            91077-96-2
                            
                                Naphtho[1,2-g]pteridine-3-sulfonic acid,7,9,10,11-tetrahydro-1-hydroxy-7-methyl-9,11-dioxo-, monosodium salt
                            
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                            Order
                            104718-59-4
                            
                                Benzo[g]pteridine-2,4(1H,3H)-dione,5-acetyl-5,10-dihydro-1,7,8,10-tetramethyl-3-(phenylmethyl)-