pterin

substituted bicyclic heterocyclic compound derived from pteridine
ChemicalSubstance type_of_chemical_entity Q386702
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pterin

Summary

pterin is a type of chemical entity[1]. pterin ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (60 views/month).[2]

Key Facts

  • pterin's instance of is recorded as type of chemical entity[3].
  • pterin's chemical structure is recorded as Pterin - Pterin.svg[4].
  • pterin's CAS Registry Number is recorded as 2236-60-4[5].
  • pterin's EC number is recorded as 218-799-1[6].
  • pterin's canonical SMILES is recorded as C1=CN=C2C(=N1)C(=O)N=C(N2)N[7].
  • pterin's InChI is recorded as InChI=1S/C6H5N5O/c7-6-10-4-3(5(12)11-6)8-1-2-9-4/h1-2H,(H3,7,9,10,11,12)[8].
  • pterin's InChIKey is recorded as HNXQXTQTPAJEJL-UHFFFAOYSA-N[9].
  • pterin's chemical formula is recorded as C₆H₅N₅O[10].
  • pterin's subclass of is recorded as pterine[11].
  • pterin's part of is recorded as pterin deaminase activity[12].
  • pterin's part of is recorded as pteridine oxidase activity[13].
  • pterin's Commons category is recorded as Pterin[14].
  • pterin's has part is recorded as nitrogen[15].
  • pterin's has part is recorded as oxygen[16].
  • pterin's has part is recorded as carbon[17].
  • pterin's ChEMBL ID is recorded as CHEMBL278009[18].
  • pterin's PDB structure ID is recorded as 3M0N[19].
  • pterin's PDB structure ID is recorded as 3LZE[20].
  • pterin's PDB structure ID is recorded as 3HD2[21].
  • pterin's Freebase ID is recorded as /m/04mccl[22].
  • pterin's UNII is recorded as 85MA24E1NH[23].
  • pterin's ChemSpider ID is recorded as 65806[24].
  • pterin's PubChem CID is recorded as 73000[25].
  • pterin's PubChem CID is recorded as 135398660[26].
  • pterin's KEGG ID is recorded as C00715[27].

Why It Matters

pterin ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (60 views/month).[2] pterin has Wikipedia articles in 14 language editions, a strong signal of global cultural recognition.[28]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . Global Substance Registration System. Retrieved . commonchemistry.cas.org. Provenance: wikidata.org.
  4. [6] . Global Substance Registration System. Retrieved . wikidata.org.
  5. [7] . PubChem. Retrieved . wikidata.org.
  6. [8] . PubChem. Retrieved . wikidata.org.
  7. [9] . PubChem. Retrieved . wikidata.org.
  8. [10] . PubChem. Retrieved . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . Gene Ontology release 2020-05-02. wikidata.org.
  11. [13] . geneontology.org. Retrieved . geneontology.org. Provenance: wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . ChEMBL. Retrieved . wikidata.org.
  17. [19] . Protein Data Bank. Retrieved . wikidata.org.
  18. [20] . Protein Data Bank. Retrieved . wikidata.org.
  19. [21] . Protein Data Bank. Retrieved . wikidata.org.
  20. [22] . Freebase Data Dumps. wikidata.org.
  21. [23] . Global Substance Registration System. Retrieved . wikidata.org.
  22. [24] . Q2311683. Retrieved . wikidata.org.
  23. [25] . PubChem. Retrieved . wikidata.org.
  24. [26] . wikidata.org.
  25. [27] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] . Wikidata sitelinks. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). pterin. Retrieved May 3, 2026, from https://4ort.xyz/entity/pterin
MLA “pterin.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/pterin.
BibTeX @misc{4ortxyz_pterin_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{pterin}}, year = {2026}, url = {https://4ort.xyz/entity/pterin}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): pterin — https://4ort.xyz/entity/pterin (retrieved 2026-05-03)

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