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sulfonic acid

organic compound with the structure R−S(=O)₂−OH
Class type of: organosulfur compound, sulfur oxoacid, sulfonyl compound Q250437

Facts

4 properties
Instance of
structural class of chemical entities
Subclass of
organosulfur compound, sulfur oxoacid, sulfonyl compound
Described by source
Brockhaus and Efron Encyclopedic Dictionary, Encyclopædia Britannica 11th edition, Armenian Soviet Encyclopedia, vol. 11[12][13][14]
Has part(s)
oxygen, sulfur, carbon, sulfonyl group, acidic proton, organyl group, sulfo group[5][6][7][8][9][10][11]
🏷️ Also known as
en sulfonic acids en sulfonic acid ar حمض السلفونيك cs sulfonová kyselina da Sulfonsyre de Sulfonsäuren en-gb sulphonic acid es acido sulfonico es ácido sulfónico fa سولفونیک اسید fi sulfonihappo fr acide sulfonique hi सलफोनिक अम्ल hu szulfonsav id asam sulfonat it acido solfonico ja スルホン酸 ko 술폰산 nl sulfonzuur pl kwas sulfonowy
🔖 Identifiers · 25
Library of Congress Authorities ID
sh85130359
GND ID
4184055-0
OpenAlex ID
C2778502040
Australian Educational Vocabulary ID
scot/504
Brockhaus Enzyklopädie online ID
sulfonsäuren
Encyclopedia of China (Second Edition) ID
209382
Encyclopedia of China (Third Edition) ID (2026)
1qNN3V
Encyclopedia of China (Third Edition) old ID (2021)
414281
Encyclopædia Britannica Online ID
science/sulfonic-acid
Freebase ID
/m/05gv45
Great Russian Encyclopedia Online ID (2017)
4173029
Great Russian Encyclopedia portal ID
sul-fokisloty-8294ff
Show all 25 identifiers +13
IUPAC Gold Book ID
S06118
J9U entity ID
987007548506605171
JSTOR topic ID (archived)
sulfonic-acids, sulfonates
KBpedia ID
SulfonicAcid
MeSH descriptor ID
D013451
MeSH tree code
D01.029.260.877.740, D01.875.800.740, D02.886.645.600
Microsoft Academic ID (discontinued)
2778502040
NALT ID
206769
PSH ID
6024
Quora topic ID
Sulfonic-Acids
Topic's main category
Category:Sulfonic acids
UMLS CUI
C0038762
Yale LUX ID
concept/1ef830e0-1948-434c-b0ab-c28e445c221e

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🔗 Connections
Has part(s) 5
oxygen, carbon, sulfur, sulfonyl group, organyl group
Subtypes 5
taurine, triflic acid, perfluorooctanesulfonic acid, ethanesulfonic acid, perfluorosulfonic acids
Described by source 2
Brockhaus and Efron Encyclopedic Dictionary, Encyclopædia Britannica 11th edition
Subclass of 2
organosulfur compound, sulfur oxoacid
Has these parts 1
sulfonyl group
Topic's main category 1
Category:Sulfonic acids
← Category's main topic 1
Category:Sulfonic acids
← Different from 1
sulfate ester
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Summary

sulfonic acid is a structural class of chemical entities[1]. It is a type of organosulfur compound[2], sulfur oxoacid[3], and sulfonyl compound[4].

References

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

Direct Wikidata claims

  1. [2] ↑ . Glossary of Class Names of Organic Compounds and Reactive Intermediates Based on Structure (IUPAC Recommendations 1995). wikidata.org.
  2. [3] ↑ . Glossary of Class Names of Organic Compounds and Reactive Intermediates Based on Structure (IUPAC Recommendations 1995). wikidata.org.
  3. [4] ↑ . Glossary of Class Names of Organic Compounds and Reactive Intermediates Based on Structure (IUPAC Recommendations 1995). wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . wikidata.org.
  11. [12] ↑ . wikidata.org.
  12. [13] ↑ . wikidata.org.
  13. [14] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. 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). sulfonic acid. Retrieved November 12, 2026, from https://4ort.xyz/entity/sulfonic-acid
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BibTeX @misc{4ortxyz_sulfonic-acid_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{sulfonic acid}}, year = {2026}, url = {https://4ort.xyz/entity/sulfonic-acid}, note = {Accessed: 2026-11-12}}
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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. 17w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    Encyclopedia of China (Third Edition) ID (2026) → 1qNN3V
    "Changed the item: QuickStatements 3.0 batch #40849: ZGBK ID"
  2. 24w ago · Twofivesixbot bot · 2026-05-25 view diff on Wikidata ↗
    Subclass of → organosulfur compound, sulfur oxoacid, sulfonyl compound
    Great Russian Encyclopedia Online ID (2017) → 4173029
    Topic's main category → Category:Sulfonic acids
    Has part(s) → oxygen, sulfur, carbon +1
    + 2 other properties edited (see Wikidata diff for full list)
    "Changed claim qualifiers: J9U entity ID: 987007548506605171, mv to monolingual text names on J9U statements"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.