5-Fluorouracil51-21-8100 % similar 5-Hydroxy-2,4(1H,3H)-pyrimidinedione20636-41-356 % similar 5-Fluoro-2-methoxy-4(3H)-pyrimidinone1480-96-253 % similar 5-Chlorouracil1820-81-152 % similar 5-Bromouracil51-20-752 % similar Thymine65-71-452 % similar 5-Iodouracil696-07-152 % similar 5-Aminouracil932-52-552 % similar 5-(Trifluoromethyl)uracil54-20-652 % similar 2-Ethoxy-5-fluoro-4(3H)-pyrimidinone56177-80-150 % similar 5-(Hydroxymethyl)uracil4433-40-348 % similar 5-Fluoro-4(3H)-pyrimidinone671-35-248 % similar 5-Formyluracil1195-08-047 % similar 5-Ethyl-2,4(1H,3H)-pyrimidinedione4212-49-147 % similar 5-Methoxyuracil6623-81-047 % similar 1,2,3,4-Tetrahydro-2,4-dioxo-5-pyrimidinecarboxylic acid23945-44-044 % similar 5-Nitro-2,4(1H,3H)-pyrimidinedione611-08-543 % similar 5-Acetyl-2,4(1H,3H)-pyrimidinedione6214-65-943 % similar Ethyl 1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinecarboxylate28485-17-837 % similar Lumazine487-21-836 % similar