2,4(1H,3H)-Pyrimidinedione, 5-amidinothio- 4-25-00-00278 (Beilstein Handbook Reference) 48126-31-4 5-Amidinothio-2,4(1H,3H)-pyrimidinedione 5-Amidinothiouracil BRN 0183788 Uracil, 5-amidinothio-