5-Fluoro-6-hydroxy-4(3H)-pyrimidinone106615-61-6100 % similar 6-Ethyl-5-fluoro-4(3H)-pyrimidinone137234-87-859 % similar 5-Fluoro-4(3H)-pyrimidinone671-35-246 % similar 7-Fluoroquinazolin-4(3H)-one16499-57-342 % similar 4,6-Dichloro-5-fluoropyrimidine213265-83-942 % similar 4,6-Difluoropyrimidine2802-62-241 % similar 5,7-Difluoro-4(3H)-quinazolinone379228-58-741 % similar Quinazolinone491-36-139 % similar 6-Hydroxy-5-nitro-4(3H)-pyrimidinone2164-83-238 % similar 7-Deazahypoxanthine3680-71-538 % similar Hypoxanthine68-94-038 % similar 3,6-Dihydro-7H-1,2,3-triazolo[4,5-D]pyrimidin-7-one2683-90-137 % similar Allopurinol315-30-037 % similar 5-Bromo-4(3H)-pyrimidinone19808-30-136 % similar 4,6-Dihydroxypyrimidine1193-24-435 % similar 5-Fluorouracil51-21-834 % similar 5-Fluoro-2-methoxy-4(3H)-pyrimidinone1480-96-233 % similar 6-Iodo-4(3H)-quinazolinone16064-08-733 % similar 6-Hydroxy-7-methoxy-4(3H)-quinazolinone179688-52-933 % similar 6,7-Bis(2-methoxyethoxy)quinazolin-4(3H)-one179688-29-032 % similar