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Thymine (C5H6N2O2, 2-oxy-4-oxy-5-methylpyrimidine, 2,4-dioxy-5-methylpyrimidine, 5-methyluracil) is one of the bases of the nucleic
acid found in DNA. It can base pair with
adenine.
Thymine combined with deoxyribose creates the nucleoside thymidine. Thymidine can be phosphorylated with
one, two or three phosphoric acid groups, creating respectively TMP, TDP or TTP (thymidine mono- di- or triphosphate).
In RNA thymine is replaced with uracil.
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