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CAS 2634-33-5

CAS 2634-33-5 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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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 Ų
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

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

Records for CAS 2634-33-5

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How CAS 2634-33-5 is used on this site

CAS 2634-33-5 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 2634-33-5 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.