3-Rtpo 3-beta-D-Ribofuranosylthieno(2,3-d)pyrimidin-4(3H)-one 3-beta-Ribofuranosylthieno(2,3-d)pyrimidin-4-one 3beta-D-Ribofuranosylthieno(2,3-d)pyrimidin-4(3H)-one 94644-73-2 NSC 268231 Theno(2,3-d)pyrimidin-4(3H)-one, 3-(beta-D-ribofuranosyl)- Thieno(2,3-d)pyrimidin-4(3H)-one, 3-beta-D-ribofuranosyl-