Pteridine
                            Order
                            87700-92-3
                            
                                Benzo[g]pteridine-2,4(3H,10H)-dione,10,10'-(1,2-ethanediyldi-4,1-phenylene)bis[3-methyl-
                            
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                            Order
                            62746-53-6
                            
                                Benzo[g]pteridine-2,4(1H,3H)-dione, 8-(dimethylamino)-7-methyl-,compd. with pyridine (1:1)
                            
                        
                        
                        
                            Order
                            36755-34-7
                            
                                Benzo[g]pteridine-2,4(1H,3H)-dione,  5-acetyl-9-bromo-5,10-dihydro-3,7,8,10-tetramethyl-