cyclopentadiene

chemical compound
ChemicalSubstance type_of_chemical_entity Q424390
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cyclopentadiene

Summary

cyclopentadiene is a type of chemical entity[1]. cyclopentadiene ranks in the top 5% of type_of_chemical_entity entities by monthly Wikipedia readership (205 views/month).[2]

Key Facts

  • cyclopentadiene's instance of is recorded as type of chemical entity[3].
  • cyclopentadiene's canonical SMILES is recorded as C1C=CC=C1[4].
  • cyclopentadiene's chemical formula is recorded as C₅H₆[5].
  • cyclopentadiene is a type of monoprotic acid[6].
  • cyclopentadiene is a type of diene[7].
  • cyclopentadiene is a type of carbon acid[8].
  • cyclopentadiene is a type of cyclic compound[9].
  • cyclopentadiene's Commons category is recorded as Cyclopentadiene[10].
  • cyclopentadiene comprises carbon[11].
  • cyclopentadiene comprises hydrogen[12].
  • cyclopentadiene's found in taxon is recorded as Cymbopogon citratus[13].
  • cyclopentadiene's found in taxon is recorded as Oryza sativa[14].
  • cyclopentadiene's has effect is recorded as cyclopentadiene exposure[15].
  • cyclopentadiene's has characteristic is recorded as Class IC flammable liquid[16].
  • cyclopentadiene's different from is recorded as cyclopentadienide[17].
  • cyclopentadiene's NIOSH Pocket Guide ID is recorded as 0170[18].
  • cyclopentadiene's density is recorded as {'amount': '+0.80'}[19].
  • cyclopentadiene's mass is recorded as {'amount': '+66.047'}[20].
  • cyclopentadiene's melting point is recorded as {'amount': '-121'}[21].
  • cyclopentadiene's melting point is recorded as {'amount': '-85'}[22].
  • cyclopentadiene's boiling point is recorded as {'amount': '+107'}[23].
  • cyclopentadiene's boiling point is recorded as {'amount': '+41'}[24].
  • cyclopentadiene's vapor pressure is recorded as {'amount': '+400'}[25].
  • cyclopentadiene's flash point is recorded as {'amount': '+77'}[26].
  • cyclopentadiene's immediately dangerous to life or health is recorded as {'amount': '+2025'}[27].

Why It Matters

cyclopentadiene ranks in the top 5% of type_of_chemical_entity entities by monthly Wikipedia readership (205 views/month).[2] cyclopentadiene has Wikipedia articles in 20 language editions, a strong signal of global cultural recognition.[28] cyclopentadiene is known by 52 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] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . 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] ↑ . wikidata.org.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . wikidata.org.
  20. [22] ↑ . wikidata.org.
  21. [23] ↑ . wikidata.org.
  22. [24] ↑ . wikidata.org.
  23. [25] ↑ . 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.
  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). cyclopentadiene. Retrieved October 6, 2026, from https://4ort.xyz/entity/cyclopentadiene
MLA “cyclopentadiene.” 4ort.xyz Knowledge Graph, 4ort.xyz, 6 Oct. 2026, https://4ort.xyz/entity/cyclopentadiene.
BibTeX @misc{4ortxyz_cyclopentadiene_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{cyclopentadiene}}, year = {2026}, url = {https://4ort.xyz/entity/cyclopentadiene}, note = {Accessed: 2026-10-06}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): cyclopentadiene — https://4ort.xyz/entity/cyclopentadiene (retrieved 2026-10-06)

Canonical URL: https://4ort.xyz/entity/cyclopentadiene · Last refreshed:

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. 10d ago · KrBot bot · 2026-09-26 view diff on Wikidata ↗
    Zvg number → 30540
    "/* wbsetclaimvalue:1| */ [[Property:P679]]: 30540, см. / see [[Template:Autofix|autofix]] на / on [[Property talk:P679]]"
  2. 13d ago · Mrwdat3 · 2026-09-23 view diff on Wikidata ↗
    Zvg number → 30540
    "/* wbcreateclaim-create:1| */ [[Property:P679]]: 030540, [[:toollabs:quickstatements/#/batch/275042|batch #275042]]"
  3. 12w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 → 1wRh0s
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
  4. 15w ago · Nabbegat · 2026-06-19 view diff on Wikidata ↗
    Density → {'amount': '+0.80'}
    Vapor pressure → {'amount': '+400'}
    Has effect → cyclopentadiene exposure
    Has parts → —
    + 20 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update-languages-short:0||tr */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/37300|batch #37300]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.