2(1H)-Pyrimidinone, 4-amino- 2(1H)-Pyrimidinone, 4-amino- (9CI) 2(1H)-pyrimidinone, 6-amino- 4-Amino-2(1H)-pyrimidinone 4-Amino-2-hydroxypyrimidine 4-Amino-2-oxo-1,2-dihydropyrimidine 4-Aminouracil 4-amino-2-pyrimidinol 71-30-7 AI3-52281 Cyt Cytosine (8CI) Cytosinimine