chlorous acid

chemical compound

Class type of: chlorine oxoacid Q407495

Facts

8 properties

Instance of: type of chemical entity
Subclass of: chlorine oxoacid^[4]
Canonical SMILES: OCl=O^[2]
Chemical formula: ClHO₂^[3]
Conjugate base: chlorite
Has part(s): hydrogen, oxygen, chlorine^[5]^[6]^[7]
Has parts: hydrogen, oxygen, chlorine
Mass: 67.967^[8]

🏷️ Also known as

en Chlorite en HOClO en HClO2 en [ClO(OH)] en chlorous acid ar حمض الكلوروز cs kyselina chloritá cs HClO2 de HClO2 de Chlor(III)-säure de Chlorige Säure el χλωριώδες οξύ es Ácido cloroso es Acido cloroso es HClO2 fa کلرو اسید fr acide chloreux fr Chlorite d'hydrogène fr HClO2 hu klórossav

🔖 Identifiers · 21

CAS Registry Number: 13898-47-0
ChEBI ID: 29219
ChEMBL ID: CHEMBL1906899
ChemSpider ID: 22861
DSSTOX compound identifier: DTXCID9083344
DSSTox substance ID: DTXSID80160853
Freebase ID: /m/0659qq
Gmelin number: 1267
InChI: InChI=1S/ClHO2/c2-1-3/h(H,2,3)
InChIKey: QBWCMBCROVPCKQ-UHFFFAOYSA-N
Interlingual Index ID: i113802
J-GLOBAL ID: 200907012101576386

Show all 21 identifiers +9

KBpedia ID: ChlorousAcid
KEGG ID: C01486
Microsoft Academic ID (discontinued): 2778679587
Nikkaji ID: J441.130G
PubChem CID: 24453
RxNorm CUI: 1543755
SureChEMBL ID: 18913
UNII: 7JRT833T5M
UniChem compound ID: 1071939

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🔗 Connections

Has part(s) 3

hydrogen, oxygen, chlorine

Conjugate base 1

chlorite

← Conjugate acid 1

chlorite

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Summary

chlorous acid is a type of chemical entity^[1].

References

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

Direct Wikidata claims

[2] ↑ chlorous acid — canonical SMILES (P233): OCl=O. PubChem. Retrieved 2016-11-19. wikidata.org.
[3] ↑ chlorous acid — chemical formula (P274): ClHO₂. PubChem. Retrieved 2016-11-19. wikidata.org.
[4] ↑ chlorous acid — subclass of (P279): chlorine oxoacid. wikidata.org.
[5] ↑ chlorous acid — has part(s) (P527): hydrogen. wikidata.org.
[6] ↑ chlorous acid — has part(s) (P527): oxygen. wikidata.org.
[7] ↑ chlorous acid — has part(s) (P527): chlorine. wikidata.org.
[8] ↑ chlorous acid — mass (P2067): 67.967 dalton. PubChem. Retrieved 2016-10-05. wikidata.org.

Class ancestry

[1] ↑ chlorous acid is an instance of type of chemical entity (Q113145171) [P31, primary]. 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). chlorous acid. Retrieved November 8, 2026, from https://4ort.xyz/entity/chlorous-acid

MLA “chlorous acid.” 4ort.xyz Knowledge Graph, 4ort.xyz, 8 Nov. 2026, https://4ort.xyz/entity/chlorous-acid.

BibTeX

@misc{4ortxyz_chlorous-acid_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{chlorous acid}}, year = {2026}, url = {https://4ort.xyz/entity/chlorous-acid}, note = {Accessed: 2026-11-08}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): chlorous acid — https://4ort.xyz/entity/chlorous-acid (retrieved 2026-11-08)

Canonical URL: https://4ort.xyz/entity/chlorous-acid · Last refreshed: November 8, 2026