2-Amino-6-hydroxpyrimidine, 2-Amino-4(1H)-pyrimidinone, 2-Aminopyrimidin-4(1H)-one, Iso Cytosine, 2-Amino-4-hydroxypyrimidine,2-Aminouracil, 2-amino-1H-pyrimidin-6-one, 2-Aminouracil, 2-amino-4-hydroxypyrimine, 2-Aminopyrimidin-4-ol, Isocytosine, 2-Amino-4-pyrimidone, 2-amino-3H-pyrimidin-4-one, 2-amino-4-oxo-3,4-dihydropyrimidine