pyrrole

heterocyclic aromatic organic compound containing a nitrogen atom
ChemicalSubstance type_of_chemical_entity Q242627
pyrrole
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pyrrole

Summary

pyrrole is a type of chemical entity[1]. pyrrole ranks in the top 4% of type_of_chemical_entity entities by monthly Wikipedia readership (1,436 views/month).[2]

Key Facts

  • pyrrole's instance of is recorded as type of chemical entity[3].
  • pyrrole's canonical SMILES is recorded as C1=CNC=C1[4].
  • pyrrole's chemical formula is recorded as C₄H₅N[5].
  • pyrrole is a type of pyrrole alkaloid[6].
  • pyrrole's Commons category is recorded as Pyrrole[7].
  • pyrrole comprises nitrogen[8].
  • pyrrole comprises carbon[9].
  • pyrrole comprises hydrogen[10].
  • pyrrole's found in taxon is recorded as Coffea arabica[11].
  • pyrrole's found in taxon is recorded as maize[12].
  • pyrrole's found in taxon is recorded as Pistacia vera[13].
  • pyrrole's found in taxon is recorded as Tamarindus indica[14].
  • pyrrole's found in taxon is recorded as Nicotiana tabacum[15].
  • pyrrole's phase point is recorded as critical point[16].
  • pyrrole's refractive index is recorded as {'amount': '+1.5085'}[17].
  • pyrrole's pKa is recorded as {'amount': '-3.8'}[18].
  • pyrrole's described by source is recorded as Encyclopædia Britannica 11th edition[19].
  • pyrrole's described by source is recorded as Armenian Soviet Encyclopedia, vol. 9[20].
  • pyrrole's described by source is recorded as Meyers Konversations-Lexikon, 4th edition (1885–1890)[21].
  • pyrrole's density is recorded as {'unit': 'Q13147228', 'amount': '+0.9698'}[22].
  • pyrrole's mass is recorded as {'unit': 'Q483261', 'amount': '+67.042'}[23].
  • pyrrole's melting point is recorded as {'unit': 'Q25267', 'amount': '-23.39'}[24].
  • pyrrole's boiling point is recorded as {'unit': 'Q25267', 'amount': '+129.74'}[25].
  • pyrrole's vapor pressure is recorded as {'unit': 'Q21064807', 'amount': '+1.10'}[26].
  • pyrrole's flash point is recorded as {'unit': 'Q25267', 'amount': '+39'}[27].

Why It Matters

pyrrole ranks in the top 4% of type_of_chemical_entity entities by monthly Wikipedia readership (1,436 views/month).[2] pyrrole has Wikipedia articles in 28 language editions, a strong signal of global cultural recognition.[28] pyrrole is known by 31 alternative names across languages and contexts.[29]

References

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

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . PubChem. Retrieved . wikidata.org.
  3. [5] . PubChem. Retrieved . wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . New volatile components of roasted coffee. wikidata.org.
  10. [12] . Volatile components of corn silk (Zea mays L.): possible Heliothis zea (Boddie) attractants. wikidata.org.
  11. [13] . Constituents of the Essential Oil from the Hulls ofPistacia veraL.. wikidata.org.
  12. [14] . Volatile Flavor Components of Tamarind (Tamarindus indicaL.). wikidata.org.
  13. [15] . Comparison of different extraction methods: steam distillation, simultaneous distillation and extraction and headspace co-distillation, used for the analysis of the volatile components in aged flue-cured tobacco leaves. wikidata.org.
  14. [16] . CRC Handbook of Chemistry and Physics (97th edition). wikidata.org.
  15. [17] . CRC Handbook of Chemistry and Physics (97th edition). wikidata.org.
  16. [18] . CRC Handbook of Chemistry and Physics (97th edition). wikidata.org.
  17. [19] . wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . CRC Handbook of Chemistry and Physics (97th edition). wikidata.org.
  21. [23] . PubChem. Retrieved . wikidata.org.
  22. [24] . CRC Handbook of Chemistry and Physics (97th edition). wikidata.org.
  23. [25] . CRC Handbook of Chemistry and Physics (97th edition). wikidata.org.
  24. [26] . CRC Handbook of Chemistry and Physics (97th edition). wikidata.org.
  25. [27] . CRC Handbook of Chemistry and Physics (97th edition). 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.
  3. [29] . Wikidata aliases. 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). pyrrole. Retrieved May 3, 2026, from https://4ort.xyz/entity/pyrrole
MLA “pyrrole.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/pyrrole.
BibTeX @misc{4ortxyz_pyrrole_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{pyrrole}}, year = {2026}, url = {https://4ort.xyz/entity/pyrrole}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): pyrrole — https://4ort.xyz/entity/pyrrole (retrieved 2026-05-03)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 2d ago · Twofivesixbot bot · 2026-05-25 view diff on Wikidata ↗
    Safety classification and labelling NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response
    Ionization energy {'unit': 'Q83327', 'amount': '+8.21'}
    Vapor pressure {'unit': 'Q21064807', 'amount': '+1.10'}
    Aliases
    + 22 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|2 */ [[Property:P8189]]: 987007551080305171, mv to monolingual text names on J9U statements"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.