2-Amino-6-hydroxy-4(3H)-pyrimidinone56-09-732 % similar 4,6-Difluoro-2-pyrimidinamine675-11-632 % similar 2,4,6-Trichloropyrimidine3764-01-031 % similar 2-Chloro-6-methyl-4-pyrimidinamine14394-60-631 % similar 6-Chloro-2-methylpyrimidin-4-amine1749-68-431 % similar 2,4,6-Trichloropyridine16063-69-730 % similar 2-Aminoisocytosine56-06-430 % similar 4-Chloro-2,6-dimethoxypyrimidine6320-15-630 % similar