2,4(1H,3H)-Pyrimidinedione, 5-fluoro-1-(tetrahydro-2-furanyl)-, (S)- 55774-30-6 S-1-(Tetrahydrofuran-2-yl)-5-fluorouracil S-Ftorafur Uracil, 5-fluoro-1-(tetrahydro-2-furyl)-, (S)-