1,2,4-Triazine-3,5(2H,4H)-dione, 6-((heptafluoropropyl)thio)-2-beta-D-ribofuranosyl- 113321-61-2 5-Perfluoropropylthio-6-azuridine 6-((Heptafluoropropyl)thio)-2-beta-D-ribofuranosyl-1,2,4-triazine-3,5(2H,4H)-dione BRN 5667477