1,4-naphthoquinone

chemical compound
ChemicalSubstance type_of_chemical_entity Q161542
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Summary

1,4-naphthoquinone is a type of chemical entity[1]. 1,4-naphthoquinone ranks in the top 6% of type of chemical entity entities by monthly Wikipedia readership (323 views/month).[2]

Key Facts

  • Canonical SMILES: C1=CC=C2C(=O)C=CC(=O)C2=C1[3]
  • Chemical formula: C₁₀H₆O₂[4]
  • Subclass of: biogenic naphthochinone[5], 1,4-naphthoquinone[6]
  • Commons category: 1,4-Naphthoquinone[7]
  • Has part(s): oxygen[8], carbon[9]
  • Found in taxon: Juglans regia[10], Juglans nigra[11]
  • Density: 1.42[12]
  • Mass: 158.036779[13]
  • Melting point: 122[14]
  • Median lethal dose (LD50): 190[15]
  • Safety classification and labelling: Regulation (EC) No. 1272/2008[16]

Why It Matters

1,4-naphthoquinone has Wikipedia articles in 16 language editions, a strong signal of global cultural recognition.[17] 1,4-naphthoquinone is known by 28 alternative names across languages and contexts.[18]

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.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [17] ↑ . Wikidata sitelinks. wikidata.org.
  3. [18] ↑ . 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). 1,4-naphthoquinone. Retrieved October 14, 2026, from https://4ort.xyz/entity/1-4-naphthoquinone
MLA “1,4-naphthoquinone.” 4ort.xyz Knowledge Graph, 4ort.xyz, 14 Oct. 2026, https://4ort.xyz/entity/1-4-naphthoquinone.
BibTeX @misc{4ortxyz_1-4-naphthoquinone_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{1,4-naphthoquinone}}, year = {2026}, url = {https://4ort.xyz/entity/1-4-naphthoquinone}, note = {Accessed: 2026-10-14}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 1,4-naphthoquinone — https://4ort.xyz/entity/1-4-naphthoquinone (retrieved 2026-10-14)

Canonical URL: https://4ort.xyz/entity/1-4-naphthoquinone · 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. 20d ago · KrBot bot · 2026-09-26 view diff on Wikidata ↗
    Zvg number → 27450
    "/* wbsetclaimvalue:1| */ Zvg number: 27450, см. / see [[Template:Autofix|autofix]] на / on [[Property talk:P679]]"
  2. 23d ago · Mrwdat3 · 2026-09-23 view diff on Wikidata ↗
    Zvg number → 27450
    "/* wbcreateclaim-create:1| */ Zvg number: 027450, [[:toollabs:quickstatements/#/batch/275042|batch #275042]]"
  3. 23w ago · KaleemBot bot · 2026-05-01 view diff on Wikidata ↗
    Median lethal dose (ld50) → {'amount': '+190'}
    Subclass of → biogenic naphthochinone, 1,4-naphthoquinone
    Found in taxon → Juglans regia, Juglans nigra
    Has part(s) → oxygen, carbon
    + 9 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ Added [[wikipedia:ur:1,4-نیفتھو کوئنون]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.