Thymine

Thymine
IUPAC name	5-Methylpyrimidine-2,4(1H,3H)-dione
Identifiers
CAS number	65-71-4
MeSH	Thymine
SMILES	CC1=CNC(=O)NC1=O
Properties
Molecular formula	C5H6N2O2
Molar mass	126.11334 g/mol
Melting point	316–317 °C
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Thymine, also known as 5-methyluracil, is a chemical found in the nucleic acid DNA. DNA holds the genetic code for living cells.

In RNA thymine is swapped with uracil (another chemical) to represent the same genetic information. In DNA, thymine (T) connects to adenine (A) by two hydrogen bonds. These bonds hold the two strands of the DNA double helix structure together.

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