Official EU label nameGlossary entry 3209

BENZISOTHIAZOLINONE

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:2634-33-5

EC:220-120-9

Ingredient index records:

BENZISOTHIAZOLINONE

Cosmetic functions: ANTIMICROBIAL

1,2-Benzisothiazol-3(2H)-one

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1 matched or reported name

BENZISOTHIAZOLINONE

Regulatory evidence across markets

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

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 2634-33-5

CAS 2634-33-5PubChem CID 17520

1,2-Benzisothiazol-3(2H)-one

Benzo[d]isothiazol-3-one is an organic heterobicyclic compound based on a fused 1,2-thiazole and benzene bicyclic ring skeleton, with the S atom positioned adjacent to one of the positions of ring fusion. It has a role as a sensitiser, a xenobiotic, a disinfectant, a platelet aggregation inhibitor, an environmental contaminant and a drug allergen. It is an organic heterobicyclic compound and an organonitrogen heterocyclic compound. — ChEBI

IUPAC name: 1,2-benzothiazol-3-one

Molecular formula: C7H5NOS
Molecular weight: 151.19 g/mol
Exact mass: 151.00918496 Da
XLogP3: 1.3
Topological polar surface area: 54.4 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

1,2-Benzisothiazolin-3-onebenzisothiazolonebenzisothiazolinonebenzoisothiazol-3-oneProxel PL1,2-Benzisothiazoline-3-one2,3-dihydro-1,2-benzothiazol-3-one3-Hydroxy-1,2-benzisothiazole

16 more reported names

Benzisothiazolin-3-one1,2-BENZISOTHIAZOL-3-ONE1,2-Benzoisothiazol-3-oneHRA0F1A4R3ORISTAR BITRefChem:411292220-120-9Benzo[d]isothiazol-3(2H)-oneProxelBenzo[d]isothiazol-3-olBenzo[d]isothiazol-3-oneC7H5NOS1,2-benzoisothiazolin-3-one1,2-benzisothiazolinoneActicide BITNipacide BIT

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External database identifiers

ChEBI:CHEBI:167099
ChEMBL:CHEMBL297304
EPA DTXSID:DTXSID5032523
PubMed:28728110
PubMed:26795242
PubMed:25724174
PubMed:23039006
PubMed:22590210
PubMed:22443210
PubMed:22249124
PubMed:22199895
PubMed:22199797
PubMed:22065833
PubMed:22065523
PubMed:22064895

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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