CAS 0 records

CAS 80-33-1

CAS 80-33-1 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

Check this CAS number Browse annexes

Chemical identity and properties

PubChem 2D chemical structure for CAS 80-33-1

CAS 80-33-1PubChem CID 6635

Chlorfenson

Chlorfenson is an arenesulfonic acid. — ChEBI

IUPAC name: (4-chlorophenyl) 4-chlorobenzenesulfonate

Molecular formula: C12H8Cl2O3S
Molecular weight: 303.2 g/mol
Exact mass: 301.9571207 Da
XLogP3: 4.3
Topological polar surface area: 51.8 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 3
Covalent units: 1
Defined stereocentres: 0

Also known as

OvexOrthotranDifensonOvochlorEstonmiteOvatranOvotoxOvotran

16 more reported names

Ester sulfonateBenzolsulfonateChlorofenizonEphirsulphonateEthersulfonateTrichlorfensonChlorfensinCorotranNiagaratranOrochlorSappilanSappiranErysitOtracidLethalaire G-58CPCBS

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:82155
ChEMBL:CHEMBL499017
EPA DTXSID:DTXSID5020310
PubMed:17235710

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 80-33-1

0 total

No records found for this CAS number.

How CAS 80-33-1 is used on this site

CAS 80-33-1 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 80-33-1 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.