4-thiouridine 1-(beta-D-ribofuranosyl)-4-thioxo-3,4-dihydropyrimidin-2(1H)-one 1-beta-D-ribofuranosyl-4-thiouracil 260.047 260.26700 A thiouridine in which the oxygen replaced by sulfur is that at C-4. C9H12N2O5S CAS:13957-31-8 CHEBI:20480 InChI=1S/C9H12N2O5S/c12-3-4-6(13)7(14)8(16-4)11-2-1-5(17)10-9(11)15/h1-2,4,6-8,12-14H,3H2,(H,10,15,17)/t4-,6-,7-,8-/m1/s1 OC[C@H]1O[C@H]([C@H](O)[C@@H]1O)n1ccc(=S)[nH]c1=O Reaxys:28750 ZLOIGESWDJYCTF-XVFCMESISA-N chebi_ontology s4u thiouridine thiouridine nucleoside analogue