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Pyrimidine 2D aromatic full.svg
Pyrimidine 2D numbers.svg
Pyrimidine molecule
Pyrimidine molecule
Preferred IUPAC name
Ither names
Jmol-3D images Image
ChEBI CHEBI:16898 YesY
ChemSpider 8903 YesY
ECHA InfoCard 100.005.479
KEGG C00396 YesY
MeSH pyrimidine
Molar mass 80.088 g mol−1
Density 1.016 g cm−3
Meltin pynt 20 to 22 °C (68 to 72 °F; 293 to 295 K)
Bylin pynt 123 to 124 °C (253 to 255 °F; 396 to 397 K)
Acidity (pKa) 1.10[2] (protonated pyrimidine)
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
YesY verify (whit is YesYN ?)
Infobox references

Pyrimidine is an aromatic heterocyclic organic compoond seemilar tae pyridine.[3] Ane o the three diazines (six-membered heterocyclics wi twa nitrogen atoms in the ring), it haes the nitrogen atoms at poseetions 1 an 3 in the raing.[4]:250 The ither diazines are pyrazine (nitrogen atoms at the 1 an 4 poseetions) an pyridazine (nitrogen atoms at the 1 an 2 poseetions). In nucleic acids, three teeps o nucleobases are pyrimidine derivatives: cytosine (C), thymine (T), an uracil (U).

References[eedit | eedit soorce]

  1. Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 141. doi:10.1039/9781849733069-FP001. ISBN 978-0-85404-182-4. 
  2. Brown, H. C.; et al. (1955). Baude, E. A.; F. C., Nachod, eds. Determination of Organic Structures by Physical Methods. New York, NY: Academic Press. 
  3. Gilchrist, Thomas Lonsdale (1997). Heterocyclic chemistry. New York: Longman. ISBN 0-582-27843-0. 
  4. Joule, John A.; Mills, Keith, eds. (2010). Heterocyclic Chemistry (5th ed.). Oxford: Wiley. ISBN 978-1-405-13300-5.