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Names | |||
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Preferred IUPAC name
5-Methylpyrimidine-2,4(1H,3H)-dione | |||
Other names
5-Methyluracil
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Identifiers | |||
3D model (JSmol)
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ChEBI | |||
ChEMBL | |||
ChemSpider | |||
ECHA InfoCard | 100.000.560 | ||
MeSH | Thymine | ||
PubChem CID
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UNII | |||
CompTox Dashboard (EPA)
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Properties | |||
C5H6N2O2 | |||
Molar mass | 126.115 g·mol−1 | ||
Density | 1.223 g cm−3 (calculated) | ||
Melting point | 316 to 317 °C (601 to 603 °F; 589 to 590 K) | ||
Boiling point | 335 °C (635 °F; 608 K) (decomposes) | ||
3.82 g/L[1] | |||
Acidity (pKa) | 9.7 | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Thymine (/ˈθaɪmɪn/) (symbol T or Thy) is one of the four nucleotide bases 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 pyrimidine nucleobase. In RNA, thymine is replaced by the nucleobase uracil. Thymine was first isolated in 1893 by Albrecht Kossel and Albert Neumann from calf thymus glands, hence its name.[2]
Wir bezeichnen diese Substanz als Thymin.[We designate this substance as thymine.]
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