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p-toluenesulfonic acid

chemical compound
ChemicalSubstance type_of_chemical_entity Q285878
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Summary

p-toluenesulfonic acid is a type of chemical entity[1]. It ranks in the top 5% of type of chemical entity entities by monthly Wikipedia readership (2,011 views/month).[2]

Key Facts

  • Canonical SMILES: CC1=CC=C(C=C1)S(=O)(=O)O[3]
  • Chemical formula: C₇H₈O₃S[4]
  • Subclass of: benzenesulfonic acid[5]
  • Commons category: 4-Toluenesulfonic acid[6]
  • Mass: 172.019[7]
  • Conjugate base: toluene-4-sulfonate[8]

Why It Matters

p-toluenesulfonic acid has Wikipedia articles in 21 language editions, a strong signal of global cultural recognition.[9] It is known by 60 alternative names across languages and contexts.[10]

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.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [9] ↑ . Wikidata sitelinks. wikidata.org.
  3. [10] ↑ . 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). p-toluenesulfonic acid. Retrieved October 10, 2026, from https://4ort.xyz/entity/p-toluenesulfonic-acid
MLA “p-toluenesulfonic acid.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Oct. 2026, https://4ort.xyz/entity/p-toluenesulfonic-acid.
BibTeX @misc{4ortxyz_p-toluenesulfonic-acid_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{p-toluenesulfonic acid}}, year = {2026}, url = {https://4ort.xyz/entity/p-toluenesulfonic-acid}, note = {Accessed: 2026-10-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): p-toluenesulfonic acid — https://4ort.xyz/entity/p-toluenesulfonic-acid (retrieved 2026-10-10)

Canonical URL: https://4ort.xyz/entity/p-toluenesulfonic-acid · 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. 16d ago · KrBot bot · 2026-09-26 view diff on Wikidata ↗
    Zvg number → 510754, 14600
    "/* wbsetclaimvalue:1| */ Zvg number: 14600, см. / see [[Template:Autofix|autofix]] на / on [[Property talk:P679]]"
  2. 19d ago · Mrwdat3 · 2026-09-23 view diff on Wikidata ↗
    Zvg number → 510754, 14600
    "/* wbcreateclaim-create:1| */ Zvg number: 014600, [[:toollabs:quickstatements/#/batch/275042|batch #275042]]"
  3. 16w ago · Nabbegat · 2026-06-19 view diff on Wikidata ↗
    Instance of → type of chemical entity
    Subclass of → —
    Aliases → —
    Subclass of → benzenesulfonic acid
    + 3 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.