Pteridine

Pteridine
C=black, H=white, N=blue	C=black, H=white, N=blue
Names
	Preferred IUPAC name Pteridine
Identifiers
CAS Number	91-18-9 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:27601 ;
ChemSpider	1014 ;
KEGG	C07581 ;
PubChem CID	1043;
UNII	6EZF26XQ81 ;
CompTox Dashboard (EPA)	DTXSID60238347 ;
	SMILES C1=CN=C2C(=N1)C=NC=N2;
Properties
Chemical formula	C6H4N4
Molar mass	132.13 g·mol−1
Melting point	139.5 °C (283.1 °F; 412.6 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	verify (what is ?)
	Infobox references

Pteridine is an organic compound. It is made of a pyrazine ring and a pyrimidine ring that share one side. It has the same shape as naphthalene, but with four carbon atoms replaced by nitrogen atoms.

Replacing hydrogen in pteridine with something else gives a group of chemicals called pteridines. Pteridines do many different things in biology. Folate, also called vitamin B9, is an important pteridine for humans.^[2]

This short article about chemistry can be made longer. You can help Wikipedia by adding to it.

Sources

↑ International Union of Pure and Applied Chemistry (2014). Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013. The Royal Society of Chemistry. p. 212. doi:10.1039/9781849733069. ISBN 978-0-85404-182-4.
↑ Siatka, Tomáš; Mát'Uš, Marek; Moravcová, Monika; Harčárová, Patrícia; Lomozová, Zuzana; Matoušová, Kateřina; Suwanvecho, Chaweewan; Krčmová, Lenka Kujovská; Mladěnka, Přemysl (2025). "Biological, dietetic and pharmacological properties of vitamin B9". npj Science of Food. 9 30. doi:10.1038/s41538-025-00396-w. PMID 40075081.

[1] International Union of Pure and Applied Chemistry (2014). Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013. The Royal Society of Chemistry. p. 212. doi:10.1039/9781849733069. ISBN 978-0-85404-182-4.

[2] Siatka, Tomáš; Mát'Uš, Marek; Moravcová, Monika; Harčárová, Patrícia; Lomozová, Zuzana; Matoušová, Kateřina; Suwanvecho, Chaweewan; Krčmová, Lenka Kujovská; Mladěnka, Přemysl (2025). "Biological, dietetic and pharmacological properties of vitamin B9". npj Science of Food. 9 30. doi:10.1038/s41538-025-00396-w. PMID 40075081.

[1]

[2]