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Names | |
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IUPAC name
Uridine[1]
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Systematic IUPAC name
1-[(2R,3R,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4(1H,3H)-dione | |
Identifiers | |
3D model (JSmol)
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ChEMBL | |
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DrugBank | |
ECHA InfoCard | 100.000.370 |
MeSH | Uridine |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
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).
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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.
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