2,4(1H,3H)-Pyridinedione, 3,3-diethyl- 3,3-Diethyl-2,4(1H,3H)-pyridinedione 3,3-Diethyl-2,4-dioxotetrahydropyridine 3,3-Diethylpyridine-2,4(1H,3H)-dione 77-04-3 Benedorm Didropyridine Dihydroprylone NSC89733 Nu 903 Persedon Persidon Presidon Prezidon Pyridion Pyridione Pyrithyldion Pyrithyldione Tetridin Tetridine