A pyrimidine nucleoside that has thymine bound to a deoxyribose sugar.


Thymidine is in fact a deoxyribonucleoside. The prefix deoxy- is often left out since there are no precursors of thymine nucleotides involved in RNA synthesis, only DNA synthesis. Hence, it is sometimes simply called thymidine.

IUPAC name: 1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione
Molecular formula: C10H14N2O5


See also: nucleoside.

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