HYPOCHLOROUS ACID
Hypochlorous Acid
HYPOCHLOROUS ACID is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.
Regulatory evidence by market
No rule for this ingredient has been imported for any of the 13 markets tracked here.
That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.
Chemical identity and properties
Hypochlorous Acid
Hypochlorous acid is a chlorine oxoacid with formula HOCl; a weak, unstable acid, it is the active form of chlorine in water. It has a role as an EC 3.1.1.7 (acetylcholinesterase) inhibitor, an EC 2.5.1.18 (glutathione transferase) inhibitor and a human metabolite. It is a member of reactive oxygen species and a chlorine oxoacid. It is a conjugate acid of a hypochlorite. — ChEBI
- IUPAC name
- hypochlorous acid
- Molecular formula
- ClHO
- Molecular weight
- 52.46 g/mol
- Exact mass
- 51.9715923 Da
- XLogP3
- 0.3
- Topological polar surface area
- 20.2 Ų
- Hydrogen-bond donors
- 1
- Hydrogen-bond acceptors
- 1
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
16 more reported names
External database identifiers
- ChEBI:CHEBI:24757
- ChEMBL:CHEMBL1616046
- EPA DTXSID:DTXSID3036737
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Inventory details for HYPOCHLOROUS ACID
INCI name
HYPOCHLOROUS ACID
Description
Hypochlorous Acid
Record provenance
- Inventory reference
- 90748
- Imported identity
- HYPOCHLOROUS ACID
- Source update
- 13/07/2020
Annex records for HYPOCHLOROUS ACID
Key data
- ANTI-SEBUM
- Helping control sebum production.
- ANTIMICROBIAL
- Preventing and/or slowing down microbial growth.
- DEODORANT
- Reducing and/or eliminating unpleasant odour. Contributing against the formation of malodour on body surfaces.
- OXIDISING
- Changing the chemical nature of another ingredient by adding oxygen (or removing hydrogen).
Official EU ingredient-name evidence
The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.
Related inventory evidence
Ingredients with overlapping formulation functions
Additional official and scientific sources
11 external databases to check this identity in
Each link searches that source for this identity. What each source is, and its legal weight
How HYPOCHLOROUS ACID appears in the CosIng inventory
The CosIng inventory lists HYPOCHLOROUS ACID as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.
HYPOCHLOROUS ACID is also tagged with 4 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.
Frequently asked questions
Source note for HYPOCHLOROUS ACID
This page reproduces the CosIng inventory entry for HYPOCHLOROUS ACID from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.
Use this inventory page to research HYPOCHLOROUS ACID and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.
Tools & next steps
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