Pyrazine
                            Order
                            264623-82-7
                            
                                Pyrido[3,4-b]pyrazine-7,7(6H)-dicarboxylic acid, 6-acetyl-5,8-dihydro-, 7,7-diethyl ester
                            
                        
                        
                            Order
                            1185316-41-9
                            
                                Pyrazine-2-carboxylic acid piperidin-4-ylaMide hydrochloride, 98+% C10H15ClN4O, MW: 242.71