PIROCTONE
Piroctone is the organic compound that conforms to the formula
PIROCTONE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet. Inventory note: V/35.
Regulatory evidence by market
This matrix separates verified ingredient rules from sources that are mapped but not yet imported. No imported rule does not mean the ingredient is permitted.
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| Market | Evidence status | Records | Source language |
|---|---|---|---|
| European Union | Source mapped Inventory entry; no linked annex rule | 0 | English and EU languages |
| Great Britain | Source mapped Official source mapped; ingredient rule not imported | 0 | English |
| Canada | Source mapped Official source mapped; ingredient rule not imported | 0 | English and French |
| New Zealand | Evidence linked Permitted list with conditions Open this evidence | 1 | English |
| ASEAN | Source mapped Official source mapped; ingredient rule not imported | 0 | English and national languages |
| China | Source mapped Official source mapped; ingredient rule not imported | 0 | Chinese with selected English material |
| Japan | Source mapped Official source mapped; ingredient rule not imported | 0 | Japanese; official English translation available |
| South Korea | Source mapped Official source mapped; ingredient rule not imported | 0 | Korean with some English names |
| United States | Source mapped Official source mapped; ingredient rule not imported | 0 | English |
| Australia | Source mapped Official source mapped; ingredient rule not imported | 0 | English |
| Brazil | Source mapped Official source mapped; ingredient rule not imported | 0 | Portuguese with INCI crosswalks |
| India | Source mapped Official source mapped; ingredient rule not imported | 0 | English and Hindi |
| Saudi Arabia | Source mapped Official source mapped; ingredient rule not imported | 0 | Arabic and English |
Chemical identity and properties

Piroctone
Piroctone is a cyclic hydroxamic acid that consists of 1-hydroxypyridin-2-one bearing methyl and 2,4,4-trimethylpentyl substtituents at positions 4 and 6 respectively. It has a role as an antiseborrheic. It is a cyclic hydroxamic acid, a pyridone and a hydroxypyridone antifungal drug. — ChEBI
- IUPAC name
- 1-hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)pyridin-2-one
- Molecular formula
- C14H23NO2
- Molecular weight
- 237.34 g/mol
- Exact mass
- 237.172878976 Da
- XLogP3
- 3.1
- Topological polar surface area
- 40.5 Ų
- Hydrogen-bond donors
- 1
- Hydrogen-bond acceptors
- 2
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
16 more reported names
External database identifiers
- ChEBI:CHEBI:59009
- ChEMBL:CHEMBL1473700
- EPA DTXSID:DTXSID2048298
- PubMed:22678620
- PubMed:21987135
- PubMed:21282741
- PubMed:21272039
- PubMed:20546226
- PubMed:19626976
- PubMed:18498517
- PubMed:18494909
- PubMed:18269596
- PubMed:16681805
- PubMed:16329615
- PubMed:16149717
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Official European Commission record
- CosIng substance ID
- 104306
- Published in the Official Journal
- Yes
- Recorded by the Commission
- 2024-09-26
Fields as published by the European Commission. The link opens the entry itself, not a search for it.
Inventory details for PIROCTONE
INCI name
PIROCTONE
Description
Piroctone is the organic compound that conforms to the formula
Record provenance
- Inventory reference
- cosing-live-104306
- Imported identity
- PIROCTONE
- Source update
- 2024-09-26
Annex records for PIROCTONE
Key data
- ANTIMICROBIAL
- Preventing and/or slowing down microbial growth.
- PRESERVATIVE
- Exclusively or mainly intended to inhibit the development of micro-organisms in the cosmetic product. All authorised preservatives are substances in the positive list of Annex V to the Cosmetics Regulation 1223/2009.
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 PIROCTONE appears in the CosIng inventory
The CosIng inventory lists PIROCTONE 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.
PIROCTONE is also tagged with 2 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 PIROCTONE
This page reproduces the CosIng inventory entry for PIROCTONE 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 PIROCTONE 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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