1-(S)-(3-Hydroxy-2-phosphonomethoxypropyl)cytosine sodium salt 1-(S)-(3-Hydroxy-2-phosphonylmethoxypropyl)cystosine sodium 113852-37-2 120362-37-0 Cidofovir sodium Phosphonic acid, (((1S)-2-(4-amino-2-oxo-1(2H)-pyrimidinyl)-1-(hydroxymethyl)ethoxy)methyl)-, sodium salt