2-Amino-6-hydroxy-4(3H)-pyrimidinone56-09-732 % similar 2-Hydroxy-5-trifluoromethylpyridine33252-63-031 % similar 2-Amino-6-chloro-4(1H)-pyrimidinone1194-21-430 % similar 2-Amino-6-methylpyrimidin-4-one3977-29-530 % similar 2-Aminoisocytosine56-06-430 % similar