2-thiocytidine 259.063 259.28334 4-amino-1-beta-D-ribofuranosylpyrimidine-2(1H)-thione Beilstein:542509 C9H13N3O4S CAS:13239-97-9 CHEBI:19780 InChI=1S/C9H13N3O4S/c10-5-1-2-12(9(17)11-5)8-7(15)6(14)4(3-13)16-8/h1-2,4,6-8,13-15H,3H2,(H2,10,11,17)/t4-,6-,7-,8-/m1/s1 Nc1ccn([C@@H]2O[C@H](CO)[C@@H](O)[C@H]2O)c(=S)n1 RHFUOMFWUGWKKO-XVFCMESISA-N chebi_ontology cytidines