877-54-3

4-amino-1-butyl-5,6-dihydropyrimidin-2-one 6-amino-3-butyl-4,5-dihydropyrimidin-2-one 6-azanyl-3-butyl-4,5-dihydropyrimidin-2-one 4-amino-1-butyl-5,6-dihydro-1H-pyrimidin-2-one