1,2,3,7,8,9-Hexahydro-2,8-dithioxo-6H-purin-6-one15986-32-0100 % similar 2-Thioxanthine2487-40-351 % similar 8-Mercaptoguanine28128-40-746 % similar Uric acid69-93-239 % similar 4,5-Diamino-6-hydroxy-2-mercaptopyrimidine1004-76-836 % similar 6,7-Dimethylpterin611-55-235 % similar 2-Mercapto-4(3H)-quinazolinone13906-09-734 % similar 6-Aza-2-thiothymine615-76-933 % similar 2-Thiothymine636-26-032 % similar 3,9-Dihydro-1H-purine-2,6-dithione5437-25-231 % similar 2-Amino-1,3,5-triazine-4,6-dithiol2770-75-430 % similar