2,2'-Anhydro-1-beta-D-arabinofuranosyl-5-fluorocytosine 40505-45-1 5-F-Anhydro-ara-C hydrochloride 5-Fluoro-2,2'-cyclocytidine AAFC Anhydro-ara-5-fluorocytosine Anhydro-arabinosyl-5-fluoro-cytosine hydrochloride Cyclo FC Cyclo cytidine, 5-fluoro-, hydrochloride Flurocitabine hydrochloride Flurocyclocytidine NSC 166641 O2,2'-Cyclocytidine, 5-fluoro-, monohydrochloride