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Title: 5-Methyluridine  
Author: World Heritage Encyclopedia
Language: English
Subject: Nucleoside, Ribonucleoside, Deoxyribonucleoside, Deoxycytidine monophosphate, Deoxyguanosine diphosphate
Collection: Nucleosides, Pyrimidinediones
Publisher: World Heritage Encyclopedia


Skeletal formula of 5-methyluridine
Space-filling model of the 5-methyluridine molecule
IUPAC name
Other names
Ribothymidine, Ribosylthymine; Thymine riboside, m5u
ChemSpider  N
Jmol-3D images Image
Molar mass 258.23 g/mol
Melting point 185 °C (365 °F; 458 K)
 N  (: YesY/N?)

The chemical compound 5-methyluridine, also called ribothymidine, is a pyrimidine nucleoside. It is the ribonucleoside counterpart to the deoxyribonucleoside thymidine, which lacks a hydroxyl group at the 2' position. 5-Methyluridine contains a thymine base joined to a ribose pentose sugar.

It exists in solid form as small white crystals or white crystalline powder, has a molecular weight of 258.23 u, and has a melting point of 185 °C. The stability of 5-methyluridine under standard temperature and pressure (STP) is very high.


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