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CAS 55965-84-9

CAS 55965-84-9 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 55965-84-9
CAS 55965-84-9PubChem CID 41679

Kathon

IUPAC name
5-chloro-2-methyl-1,2-thiazol-3-one;2-methyl-1,2-thiazol-3-one
Molecular formula
C8H9ClN2O2S2
Molecular weight
264.8 g/mol
Exact mass
263.9793976 Da
Topological polar surface area
91.2 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
4
Covalent units
2
Defined stereocentres
0

Also known as

Kathon 886Kathon LX15O9QS218W3(2H)-Isothiazolone, 5-chloro-2-methyl-, mixt. with 2-methyl-3(2H)-isothiazoloneKathon 886 biocideMBC-215RefChem:151011Kathon biocide
16 more reported names
Kathon CGKathon 886MWZonen FProClin 3002-Methylisothiazol-3(2H)-one compound with 5-chloro-2-methylisothiazol-3(2H)-one(14%in H2O)C8H9ClN2O2S22-Methylisothiazol-3(2H)-one compound with 5-chloro-2-methylisothiazol-3(2H)-oneBio-Perge2-Methylisothiazol-3(2H)-one 5-chloro-2-methylisothiazol-3(2H)-one (1:1)5-Chloro-2-methyl-3(2H)-isothiazolone mixt. with 2-methyl-3(2H)-isothiazoloneKathon WTMicrocide IIISomacide RSLegend MK3(2H)-Isothiazolone, 5-chloro-2-methyl-, mixt. with2-methyl-3(2H)-isothiazoloneOTHER CA INDEX NAMES:3(2H)-Isothiazolone, 2-methyl-, mixt. contg.Kathon CG/ICP II
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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 55965-84-9

1 total
No records found for this CAS number.

How CAS 55965-84-9 is used on this site

CAS 55965-84-9 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares 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 55965-84-9 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.