ketene

chemical compound
ChemicalSubstance type_of_chemical_entity Q421032
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ketene

Summary

ketene is a type of chemical entity[1]. ketene ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (58 views/month).[2]

Key Facts

  • ketene's instance of is recorded as type of chemical entity[3].
  • ketene's chemical structure is recorded as Structural formula of ethenone.svg[4].
  • ketene's GND ID is recorded as 4296807-0[5].
  • ketene's CAS Registry Number is recorded as 463-51-4[6].
  • ketene's EC number is recorded as 207-336-9[7].
  • ketene's canonical SMILES is recorded as C=C=O[8].
  • ketene's InChI is recorded as InChI=1S/C2H2O/c1-2-3/h1H2[9].
  • ketene's InChIKey is recorded as CCGKOQOJPYTBIH-UHFFFAOYSA-N[10].
  • ketene's chemical formula is recorded as C₂H₂O[11].
  • ketene's subclass of is recorded as ketene[12].
  • ketene's Commons category is recorded as Ethenone[13].
  • ketene's has part is recorded as oxygen[14].
  • ketene's has part is recorded as carbon[15].
  • ketene's has part is recorded as hydrogen[16].
  • ketene's Freebase ID is recorded as /m/05pd8pv[17].
  • ketene's UNII is recorded as LEP3SM032A[18].
  • ketene's RTECS number is recorded as OA7700000[19].
  • ketene's ChemSpider ID is recorded as 9643[20].
  • ketene's PubChem CID is recorded as 10038[21].
  • ketene's ZVG number is recorded as 12700[22].
  • ketene's ChEBI ID is recorded as 48003[23].
  • ketene's Encyclopædia Britannica Online ID is recorded as science/ketene[24].
  • ketene's has effect is recorded as ketene exposure[25].
  • ketene's has characteristic is recorded as flammable gas[26].
  • ketene's Gmelin number is recorded as 24996[27].

Why It Matters

ketene ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (58 views/month).[2] ketene has Wikipedia articles in 19 language editions, a strong signal of global cultural recognition.[28] ketene is known by 14 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] . wikidata.org.
  3. [5] . wikidata.org.
  4. [6] . Global Substance Registration System. Retrieved . commonchemistry.cas.org. Provenance: wikidata.org.
  5. [7] . Global Substance Registration System. Retrieved . wikidata.org.
  6. [8] . PubChem. Retrieved . wikidata.org.
  7. [9] . PubChem. Retrieved . wikidata.org.
  8. [10] . PubChem. Retrieved . wikidata.org.
  9. [11] . PubChem. Retrieved . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . Global Substance Registration System. Retrieved . wikidata.org.
  17. [19] . wikidata.org.
  18. [20] . Q2311683. Retrieved . wikidata.org.
  19. [21] . PubChem. Retrieved . wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . ChEBI. Retrieved . wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . cdc.gov. cdc.gov. Provenance: wikidata.org.
  24. [26] . cdc.gov. cdc.gov. Provenance: 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.
  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). ketene. Retrieved May 3, 2026, from https://4ort.xyz/entity/ketene-q421032
MLA “ketene.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/ketene-q421032.
BibTeX @misc{4ortxyz_ketene-q421032_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{ketene}}, year = {2026}, url = {https://4ort.xyz/entity/ketene-q421032}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): ketene — https://4ort.xyz/entity/ketene-q421032 (retrieved 2026-05-03)

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