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CAS 1763-23-1

CAS 1763-23-1 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 1763-23-1
CAS 1763-23-1PubChem CID 74483

Perfluorooctanesulfonic acid

IUPAC name
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonic acid
Molecular formula
C8HF17O3S
Molecular weight
500.13 g/mol
Exact mass
499.9374938 Da
XLogP3
5.0
Topological polar surface area
62.8 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
20
Covalent units
1
Defined stereocentres
0

Also known as

PFOSPerfluorooctane sulfonic acidPerfluorooctylsulfonic acidHeptadecafluoro-1-octanesulfonic acidEftop EF 1011-Perfluorooctanesulfonic acidheptadecafluorooctane-1-sulfonic acidHeptadecafluorooctane-1-sulphonic acid
16 more reported names
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-Heptadecafluoro-1-octanesulfonic acid9H2MAI21CLEF 1011-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-perfluorooctane sulphonic acidPFOS compoundheptadecafluorooctane sulfonic acidheptadecafluoro-1-octane sulfonic acidRefChem:6113PFOS perfluorooctanesulfonic acid217-179-8Perfluorooctane sulfonateHeptadecafluorooctanesulfonic acidFloral FC 95C8HF17O3SFC 95
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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 1763-23-1

1 total
No records found for this CAS number.

How CAS 1763-23-1 is used on this site

CAS 1763-23-1 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 1763-23-1 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.