Description
Thymine (T, Thy) is one of the four nucleobases in the nucleic acid of DNA that are represented by the letters G-C-A-T. The others are adenine, guanine, and cytosine. Thymine is also known as 5-methyluracil, a pyrimidinenucleobase. In RNA, thymine is replaced by the nucleobase uracil. Thymine was first isolated (from calves' thymus glands) in 1893 by Albrecht Kossel and Albert Neumann.
Synonyms
5-methyluracil; 2,4-(1H,3H)-Pyrimidinedione, 5-methyl-; 2,4-(1H,3H)-Pyrimidinedione, 5-methyl-; 2,4-Dihydroxy-5-methylpyrimidine; 5-Methyl-2,4-(1H,3H)-pyrimidinedione; 5-Methyl-2,4-dioxypyrimidine
IUPAC Name
5-methyl-1H-pyrimidine-2,4-dione
Molecular Formula
C5H6N2O2
Canonical SMILES
CC1=CNC(=O)NC1=O
InChI
InChI=1S/C5H6N2O2/c1-3-2-6-5(9)7-4(3)8/h2H,1H3,(H2,6,7,8,9)
InChIKey
RWQNBRDOKXIBIV-UHFFFAOYSA-N
Appearance
White crystalline powder