CAS 4449-40-5 appears in our catalog under these names: 2'-Deoxy-a-cytidine, 4-Amino-1-((2S,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one 97%, 4-Amino-1-((2S,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one, 97%, 97%. Offered by: Biosynth, Ambeed, Chemat. Available pack sizes: 100mg, 50mg, 250mg, 500mg, 1000mg, 1g.