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EU cosmetic ingredients, restrictions and safety
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Official EU label nameGlossary entry 6236

CHLOROUS ACID

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

0 markets with evidence
Markets checked
13
Markets with evidence
0
Evidence gaps
13
Resolved identifiers
1

Resolved substance identity

CAS:13898-47-0
Ingredient index records:
CHLOROUS ACID
Cosmetic functions: ANTICORROSIVE; ANTIMICROBIAL; DEODORANT; ORAL CARE; OXIDISING

Chlorous Acid is the inorganic acid that conforms to the formula:

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1 matched or reported name
CHLOROUS ACID

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name CHLOROUS ACID.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 13898-47-0
CAS 13898-47-0PubChem CID 24453

Chlorous acid

Chlorous acid is a chlorine oxoacid. It is a conjugate acid of a chlorite. — ChEBI

IUPAC name
chlorous acid
Molecular formula
ClHO2
Molecular weight
68.46 g/mol
Exact mass
67.9665070 Da
XLogP3
1.4
Topological polar surface area
37.3 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

chlorus acid7JRT833T5MCHEBI:29219Encore ActivatorRefChem:57339HYDROGEN CHLORITEUNII-7JRT833T5Mchlorige Saeure
6 more reported names
HOClOhydroxidooxidochlorineHClO2[ClO(OH)]DB-08100910049-04-4; 70377-94-5(hydrate)
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External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Additional authoritative substance research

Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight

Cosmetic Ingredient Review safety assessmentsFDA Global Substance Registration SystemILO/WHO International Chemical Safety CardsJapan NITE-CHRIPNIOSH Pocket Guide to Chemical HazardsOECD eChemPortalUS EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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