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squaric acid

chemical compound
ChemicalSubstance type_of_chemical_entity Q903298
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squaric acid

Summary

squaric acid is a type of chemical entity[1]. It has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • squaric acid's instance of is recorded as type of chemical entity[3].
  • square is named after squaric acid[4].
  • squaric acid was followed by croconic acid[5].
  • squaric acid's canonical SMILES is recorded as C1(=C(C(=O)C1=O)O)O[6].
  • squaric acid's chemical formula is recorded as C₄H₂O₄[7].
  • squaric acid is a type of cyclic compound[8].
  • squaric acid is a type of diprotic acid[9].
  • squaric acid is a type of organic acid[10].
  • squaric acid is a type of vinylogue[11].
  • squaric acid's Commons category is recorded as Squaric acid[12].
  • squaric acid comprises carbon[13].
  • squaric acid comprises oxygen[14].
  • squaric acid comprises hydrogen[15].
  • squaric acid's has characteristic is recorded as vinylogy[16].
  • squaric acid's mass is recorded as {'unit': 'Q483261', 'amount': '+113.995'}[17].
  • squaric acid's conjugate base is recorded as hydrogensquarate[18].

Why It Matters

squaric acid has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[2] It is known by 15 alternative names across languages and contexts.[19]

References

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

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . Elsevier's dictionary of chemoetymology: The Whys and Whences of Chemical Nomenclature and Terminology. wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . PubChem. Retrieved . wikidata.org.
  5. [7] ↑ . PubChem. Retrieved . 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] ↑ . PubChem. Retrieved . wikidata.org.
  16. [18] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. wikidata.org.
  2. [19] ↑ . 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). squaric acid. Retrieved May 3, 2026, from https://4ort.xyz/entity/squaric-acid
MLA “squaric acid.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/squaric-acid.
BibTeX @misc{4ortxyz_squaric-acid_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{squaric acid}}, year = {2026}, url = {https://4ort.xyz/entity/squaric-acid}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): squaric acid — https://4ort.xyz/entity/squaric-acid (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. 16d ago · Nabbegat · 2026-06-19 view diff on Wikidata ↗
    Followed by → —
    Followed by → croconic acid
    Has parts → —
    Instance of → type of chemical entity
    + 10 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]]"
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