IUPAC:({[({[(2R,3S,4R,5R)-4-amino-3-hydroxy-5-(4-oxo-2-sulfanylidene-1,2,3,4-tetrahydropyrimidin-1-yl)oxolan-2-yl]methoxy}(hydroxy)phosphoryl)oxy](hydroxy)phosphoryl}oxy)phosphonic acid
IUPAC:({[({[(2R,3S,4R,5R)-4-amino-3-hydroxy-5-(4-oxo-2-sulfanylidene-1,2,3,4-tetrahydropyrimidin-1-yl)oxolan-2-yl]methoxy}(hydroxy)phosphoryl)oxy](hydroxy)phosphoryl}oxy)phosphonic acid