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CAS 78649-62-4 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

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InventoryRef 3945402/03/2011

CYCLOPENTANONE TERT-BUTYLETHYLENE GLYCOL CYCLIC ACETAL

2-Butyl-1,4-dioxaspiro(4.4)nonane; 1,2,O-2-(tert-Butyl)ethyleneglycol

CYCLOPENTANONE TERT-BUTYLETHYLENE GLYCOL CYCLIC ACETAL is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 78649-62-4

CAS 78649-62-4PubChem CID 166504

1,4-Dioxaspiro(4.4)nonane, 2-butyl-

IUPAC name: 3-butyl-1,4-dioxaspiro[4.4]nonane

Molecular formula: C11H20O2
Molecular weight: 184.27 g/mol
Exact mass: 184.146329876 Da
XLogP3: 2.7
Topological polar surface area: 18.5 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

2-butyl-1,4-dioxaspiro[4.4]nonaneEINECS 278-963-31,4-Dioxaspiro[4.4]nonane, 2-butyl-2-Butyl-1,4-dioxaspiro(4.4)nonaneRefChem:2207481,4-Dioxaspiro4.4nonane, 2-butyl-278-963-3RZZUCKICOCVJJN-UHFFFAOYSA-N

1 more reported name

2-butyl-1,4-dioxaspiro[4,4]nonane

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID30888550

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for CYCLOPENTANONE TERT-BUTYLETHYLENE GLYCOL CYCLIC ACETAL

INCI name

CYCLOPENTANONE TERT-BUTYLETHYLENE GLYCOL CYCLIC ACETAL

Description

2-Butyl-1,4-dioxaspiro(4.4)nonane; 1,2,O-2-(tert-Butyl)ethyleneglycol

Record provenance

Inventory reference: 39454
Imported identity: CYCLOPENTANONE TERT-BUTYLETHYLENE GLYCOL CYCLIC ACETAL
Source update: 02/03/2011

European Commission CosIng source notes

Annex records for CYCLOPENTANONE TERT-BUTYLETHYLENE GLYCOL CYCLIC ACETAL

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Key data

CAS

78649-62-4

278-963-3

Restriction

—

Function

PERFUMING: Used for perfume and aromatic raw materials.

Ingredients with overlapping formulation functions

CYCLOOCTENYL METHYL CARBONATEPERFUMING

CYCLOOCTYL METHYL CARBONATEPERFUMING

CYCLOPENTADECENONEPERFUMING

CYCLOPENTANONEPERFUMING

CYCLOTETRADECANONEPERFUMING

CYMBOPOGON CITRATUS LEAF EXTRACT OXIDIZEDPERFUMING

CYMBOPOGON CITRATUS LEAF OILFRAGRANCE, PERFUMING

CYMBOPOGON FLEXUOSUS HERB EXTRACTPERFUMING

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal

How CYCLOPENTANONE TERT-BUTYLETHYLENE GLYCOL CYCLIC ACETAL appears in the CosIng inventory

The CosIng inventory lists CYCLOPENTANONE TERT-BUTYLETHYLENE GLYCOL CYCLIC ACETAL as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

CYCLOPENTANONE TERT-BUTYLETHYLENE GLYCOL CYCLIC ACETAL is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

CYCLOPENTANONE TERT-BUTYLETHYLENE GLYCOL CYCLIC ACETAL is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, CYCLOPENTANONE TERT-BUTYLETHYLENE GLYCOL CYCLIC ACETAL carries the following function designation(s):

PERFUMING

CAS 78649-62-4 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

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Source note for CYCLOPENTANONE TERT-BUTYLETHYLENE GLYCOL CYCLIC ACETAL

This page reproduces the CosIng inventory entry for CYCLOPENTANONE TERT-BUTYLETHYLENE GLYCOL CYCLIC ACETAL from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research CYCLOPENTANONE TERT-BUTYLETHYLENE GLYCOL CYCLIC ACETAL and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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