Synonyms: EUrd;3'-C-Ethynyluridine;3-C-Ethynyl-uridine;Uridine, 3'-C-ethynyl;AC1L42EH;PJ 272;PJ-272;1-(3-C-Ethynylribopentofuranosyl)uracil;1-(3'-C-ethynyl-beta-D-ribofuranosyl)uracil;2,4(1H,3H)-Pyrimidinedione, 1-(3-C-ethynyl-.beta.-D-ribofuranosyl)-;1-[(2R,3R,4S,5R)-4-ethynyl-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione;180300-49-6