Official EU label nameGlossary entry 17870

OCTYLISOTHIAZOLINONE

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.

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Markets with evidence

Evidence gaps

Resolved identifiers

Resolved substance identity

CAS:26530-20-1

EC:247-761-7

Ingredient index records:

OCTYLISOTHIAZOLINONE

Cosmetic functions: ANTIMICROBIAL

2-Octyl-3(2H)-isothiazolinone

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1 matched or reported name

OCTYLISOTHIAZOLINONE

Regulatory evidence across markets

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

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 26530-20-1

CAS 26530-20-1PubChem CID 33528

2-n-Octyl-4-isothiazolin-3-one

2-octyl-3-isothiazolone is a clear dark amber liquid. Used as a fungicide. — CAMEO Chemicals

IUPAC name: 2-octyl-1,2-thiazol-3-one

Molecular formula: C11H19NOS
Molecular weight: 213.34 g/mol
Exact mass: 213.11873540 Da
XLogP3: 3.5
Topological polar surface area: 45.6 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

Octhilinone2-Octyl-4-isothiazolin-3-onePancil2-Octyl-2H-isothiazol-3-one2-Octyl-3-isothiazolone2-Octyl-3(2H)-isothiazoloneSkane 8Micro-chek skane

16 more reported names

3(2H)-Isothiazolone, 2-octyl-Pancil-TKathon LMMicrobicide M-8Micro-chek 11Micro-chek 11DKathon SP 70Kathon LP preservativeKathon 4200RH 8934-Isothiazolin-3-one, 2-octyl-2-Octyl-3-isothiazolinone2-octyl-1,2-thiazol-3(2H)-one4LFS24GD0VRH-893EPA Pesticide Chemical Code 099901

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External database identifiers

ChEBI:CHEBI:81936
ChEMBL:CHEMBL1562104
EPA DTXSID:DTXSID1025805
PubMed:33806369
PubMed:30561685
PubMed:22056744
PubMed:21728892
PubMed:21329931
PubMed:21210827
PubMed:20960358
PubMed:20536482
PubMed:19928874
PubMed:19709196
PubMed:19486005
PubMed:18361111

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 assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal US 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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