.beta.-D-Ribofuranoside, cytosine-1 1-.beta.-D-Ribofuranosylcytosine 1.beta.-Ribofuranosylcytosine 2(1H)-Pyrimidinone, 4-amino-1-.beta.-D-ribofuranosyl- 2(1H)-Pyrimidinone, 4-amino-1.beta.-D-ribofuranosyl- 4-Amino-1.beta.-D-ribofuranosyl-2(1H)-pyrimidinone 65-46-3 Cyd Cytidine Cytosine riboside Cytosine, 1-.beta.-D-ribofuranosyl- NSC20258