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CAS 16409-43-1

CAS 16409-43-1 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 16409-43-1
CAS 16409-43-1PubChem CID 27866

Rose oxide

Rose oxide is a member of the class of oxanes that is tetrahydro-2H-pyran which is substituted at positions 2 and 4 by an isoprop-1-enyl group and a methyl group, respectively. Organic compound of the pyran class and the monoterpene class and a fragrance found in roses and rose oil. All four possible stereoisomers are known; the 2S,4R and 2S,4S diastereoisomers [also known as the ()-cis- and ()-trans-isomers, respectively] are the main constituents in several essential oils and are used as a food flavouring and in perfumes and cosmetics. It has a role as a plant metabolite. It is a monoterpenoid, a member of oxanes and an olefinic compound. — ChEBI

IUPAC name
4-methyl-2-(2-methylprop-1-enyl)oxane
Molecular formula
C10H18O
Molecular weight
154.25 g/mol
Exact mass
154.135765193 Da
XLogP3
2.9
Topological polar surface area
9.2 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

4-Methyl-2-(2-methylprop-1-en-1-yl)tetrahydro-2H-pyranRosenoxideRosoxideFEMA No. 3236Tetrahydro-4-methyl-2-(2-methyl-1-propenyl)-2H-pyran2H-Pyran, tetrahydro-4-methyl-2-(2-methyl-1-propenyl)-4-methyl-2-(2-methylprop-1-en-1-yl)oxanePyran, tetrahydro-4-methyl-2-(2-methylpropenyl)-
16 more reported names
2H-Pyran, tetrahydro-4-methyl-2-(2-methylpropenyl)-4-Methyl-2-(2-methyl-1-propenyl)tetrahydro-2H-pyranTetrahydro-4-methyl-2-(2-methylpropen-1-yl)pyranCHEBI:900752-Isobutenyl-4-methyltetrahydropyran4O51437J50Tetrahydro-4-methyl-2-[2-methyl-1-propenyl]-2H-pyranrose-oxideRefChem:897131240-457-5(+)-Rose oxide2H-Pyran, tetrahydro-4-methyl-2-(2-methyl-1-propen-1-yl)-Tetrahydro-4-methyl-2-(2-methylprop-1-enyl)pyranPyran, 2-(2-methyl-1-propenyl)-4-methyltetrahydro-(-)-Rose oxidePYRAN, TETRAHYDRO-2-(2-METHYL-1-PROPENYL)-4-METHYL-
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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.

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How CAS 16409-43-1 is used on this site

CAS 16409-43-1 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 16409-43-1 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.