IUPAC:4-amino-1-[(2R,4R,5R)-3,3-difluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-1,2-dihydro(2-13C,1,3-15N2)pyrimidin-2-one hydrochloride
IUPAC:4-amino-1-[(2R,4R,5R)-3,3-difluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-1,2-dihydro(2-13C,1,3-15N2)pyrimidin-2-one hydrochloride