三乙铝

[5'-(32)P]UMP

D,D,D-U(3'-5')pC(3'-5')pC

1-[(2R,3R,4R,5R)-4-hydroxy-5-(hydroxymethyl)-3-(4-methoxyoxan-4-yl)oxyoxolan-2-yl]pyrimidine-2,4-dione

cytidylyl-(3'->5')-uridine