for cytidine , deoxycytidine , 5'-cmp , 3 ' -cmp and 5 ' -dcmp , four radicals have been observed and for uridine , deoxyuridine , 5 ' -ump , 3 ' -ump and 5 ' -dump , the existence of at least three radical species have been established .
C0010715
cytidine
C0011485
deoxycytidine