Uridine

Uridine

Names
IUPAC name Uridine[1]
Systematic IUPAC name 1-[(2R,3R,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4(1H,3H)-dione
Identifiers
CAS Number	58-96-8 Y
3D model (JSmol)	Interactive image
ChEMBL	ChEMBL100259 N
ChemSpider	5807 N
DrugBank	DB02745 Y
ECHA InfoCard	100.000.370
IUPHAR/BPS	4566
MeSH	Uridine
PubChem CID	6029
UNII	WHI7HQ7H85 Y
CompTox Dashboard (EPA)	DTXSID40891555
InChI InChI=1S/C9H12N2O6/c12-3-4-6(14)7(15)8(17-4)11-2-1-5(13)10-9(11)16/h1-2,4,6-8,12,14-15H,3H2,(H,10,13,16)/t4-,6-,7-,8-/m1/s1 N Key: DRTQHJPVMGBUCF-XVFCMESISA-N N InChI=1/C9H12N2O6/c12-3-4-6(14)7(15)8(17-4)11-2-1-5(13)10-9(11)16/h1-2,4,6-8,12,14-15H,3H2,(H,10,13,16)/t4-,6-,7-,8-/m1/s1 Key: DRTQHJPVMGBUCF-XVFCMESIBG
SMILES O=C1NC(=O)N(C=C1)[C@@H]2O[C@H](CO)[C@@H](O)[C@H]2O
Properties
Chemical formula	C9H12N2O6
Molar mass	244.20
Appearance	solid
Density	.99308g/cm3
Melting point	167.2 °C (333.0 °F; 440.3 K)
log P	-1.98
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Uridine (symbol U or Urd) is a glycosylated pyrimidine analog containing uracil attached to a ribose ring (or more specifically, a ribofuranose) via a β-N₁-glycosidic bond. The analog is one of the five standard nucleosides which make up nucleic acids, the others being adenosine, thymidine, cytidine and guanosine. The five nucleosides are commonly abbreviated to their symbols, U, A, dT, C, and G, respectively. However, thymidine is more commonly written as 'dT' ('d' represents 'deoxy') as it contains a 2'-deoxyribofuranose moiety rather than the ribofuranose ring found in uridine. This is because thymidine is found in deoxyribonucleic acid (DNA) and usually not in ribonucleic acid (RNA). Conversely, uridine is found in RNA and not DNA. The remaining three nucleosides may be found in both RNA and DNA. In RNA, they would be represented as A, C and G whereas in DNA they would be represented as dA, dC and dG.