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. Author manuscript; available in PMC: 2011 Sep 1.
Published in final edited form as: Curr Protoc Nucleic Acid Chem. 2010 Sep;CHAPTER:Unit4.41. doi: 10.1002/0471142700.nc0441s42

Table 3.

Molar Extinction Coefficient for each Nucleobase

Nucleobase Extinction coefficient (ε) at 260 nm1
T 8700 M−1cm−1
dC 7400 M−1cm−1
dG 11500 M−1cm−1
dA 15400 M−1cm−1
1

Determined at 25 °C and neutral pH conditions (Fasman, 1975).