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CAS 25966-79-4

CAS 25966-79-4 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

Chemical identity and properties

PubChem 2D chemical structure for CAS 25966-79-4
CAS 25966-79-4PubChem CID 13893399

3-Thujopsanone

IUPAC name
(1aS,2S,4aS,8aS)-2,4a,8,8-tetramethyl-1a,2,4,5,6,7-hexahydro-1H-cyclopropa[j]naphthalen-3-one
Molecular formula
C15H24O
Molecular weight
220.35 g/mol
Exact mass
220.182715385 Da
XLogP3
4.2
Topological polar surface area
17.1 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
4

Also known as

Cyclopropa[d]naphthalen-3(1H)-one, octahydro-2,4a,8,8-tetramethyl-, (1aS,2S,4aS,8aS)-Cyclopropa(d)naphthalen-3(1H)-one, octahydro-2,4a,8,8-tetramethyl-, (1aS,2S,4aS,8aS)-RefChem:505474247-381-1(-)-ThujopsanoneEINECS 247-381-1(1aS,2S,4aS,8aS)-2,4a,8,8-Tetramethyloctahydrocyclopropa[d]naphthalen-3(1H)-one(1AS-(1aalpha,2alpha,4abeta,8aR*))-octahydro-2,4a,8,8-tetramethylcyclopropa(d)naphthalen-3(1H)-one
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 25966-79-4

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No records found for this CAS number.

How CAS 25966-79-4 is used on this site

CAS 25966-79-4 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 25966-79-4 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.