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Uracil


Uracil
Chemical name Pyrimidine-2,4(1H,3H)-dione
Chemical formula C4H4N2O2
Molecular mass 112.09 g/mol
Melting point 335 °C
CAS number 66-22-8
SMILES O=C(N1)NC=CC1=O

Uracil is one of the four RNA nucleobases, replacing thymine as found in DNA. Just like thymine, uracil can form a base pair with adenine via two hydrogen bonds, but it lacks the methyl group present in thymine. Uracil, in comparison to thymine, will more readily degenerate into cytosine.


Last updated: 01-04-2007 01:18:57
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