Pteridine

Pteridine is an aromatic chemical compound composed of fused pyrimidine and pyrazine rings. A pteridine is also a group of heterocyclic compounds containing a wide variety of substitutions on this structure. Pterins and flavins are classes of substituted pteridines that have diverse biological roles.[1]

Synthesis of pteridine from 4,5-diaminopyrimidine and glyoxal

Pteridine

C=black, H=white, N=blue C=black, H=white, N=blue
Names
IUPAC name pteridine
Identifiers
CAS Number	91-18-9^Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:27601^N
ChemSpider	1014^N
KEGG	C07581^N
PubChem CID	1043
UNII	6EZF26XQ81^Y
CompTox Dashboard (EPA)	DTXSID60238347
InChI InChI=1S/C6H4N4/c1-2-9-6-5(8-1)3-7-4-10-6/h1-4H^N Key: CPNGPNLZQNNVQM-UHFFFAOYSA-N^N InChI=1/C6H4N4/c1-2-9-6-5(8-1)3-7-4-10-6/h1-4H Key: CPNGPNLZQNNVQM-UHFFFAOYAU
SMILES C1=CN=C2C(=N1)C=NC=N2
Properties
Chemical formula	C6H4N4
Molar mass	132.126 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).
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Infobox references

See also

• Dihydrobiopterin
• Pyrazine
• Pyrimidine
• Tetrahydrobiopterin

References

1. Kritsky, M. S; Telegina, T. A; Vechtomova, Y. L; Kolesnikov, M. P; Lyudnikova, T. A; Golub, O. A (2010). "Excited flavin and pterin coenzyme molecules in evolution". Biochemistry. Biokhimiia. 75 (10): 1200–16. PMID 21166638.