Pteridine
                            Order
                            647826-56-0
                            
                                1H-Pyrrolo[3,2-g]pteridine-2,4(3H,8H)-dione,8-(1,1-dimethylethyl)-1,3-dimethyl-7-phenyl-
                            
                        
                        
                        
                        
                        
                        
                            Order
                            346709-25-9
                            
                                Pyrimido[5,4-g]pteridine-2,4,6,8-tetramine, 4-methylbenzenesulfonate, base-hydrolysed