5-Methylcytosine hydrochloride58366-64-6100 % similar 5-Methylcytosine554-01-889 % similar 6-Amino-5-iodo-2(1H)-pyrimidinone1122-44-758 % similar 5-Bromocytosine2240-25-755 % similar Flucytosine2022-85-753 % similar 1,3-Dihydro-4-methyl-2H-imidazol-2-one1192-34-347 % similar Toxopyrimidine73-67-641 % similar 4-Amino-2-methyl-5-pyrimidinemethanamine95-02-338 % similar 6-Amino-1,3,5-triazin-2(1H)-one931-86-237 % similar Cytosine71-30-736 % similar 4-Amino-5-methyl-2(1H)-pyridinone95306-64-234 % similar Thymine65-71-432 % similar 1-(4-Amino-2-methylpyrimidin-5-yl)methyl-3-(2-chloroethyl)-3-nitrosourea hydrochloride55661-38-632 % similar 2-Amino-4-hydroxy-6-methylpyrimidine3977-29-531 % similar 2-Thiothymine636-26-031 % similar 2-Hydroxy-5-methylpyridine1003-68-531 % similar 5-Methyl-2-pyridinol91914-06-631 % similar