6-Amino-1-methyluracil2434-53-9100 % similar 1-Methyluracil615-77-043 % similar 6-Amino-1-methyl-5-nitroso-2,4(1H,3H)-pyrimidinedione6972-78-743 % similar 6-Amino-1,3-dimethyluracil6642-31-541 % similar 3-Methylxanthine1076-22-836 % similar Theobromine83-67-036 % similar 3,7-Dihydro-3-methyl-7-propyl-1H-purine-2,6-dione55242-64-335 % similar 6-Amino-2-methyl-4(3H)-pyrimidinone767-16-834 % similar 6-Chloro-3-methyl-2,4(1H,3H)-pyrimidinedione4318-56-333 % similar 6-Aminouracil873-83-632 % similar 6-Hydroxy-4-methyl-2-pyridone4664-16-832 % similar Citrazinic acid99-11-632 % similar 6-Amino-2-thiouracil1004-40-631 % similar 4,6-Dihydroxy-2-(methylthio)pyrimidine1979-98-231 % similar Deoxyuridine951-78-030 % similar 1,2-Dihydro-1-methyl-3,6-pyridazinedione5436-01-130 % similar 2,4-Diamino-6-hydroxypyrimidine56-06-430 % similar