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CAS 13257-44-8 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 4100002/03/2011

2-NONYN-1-AL DIMETHYLACETAL

1,1-Dimethoxy-2-nonyne;

2-NONYN-1-AL DIMETHYLACETAL 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 13257-44-8

CAS 13257-44-8PubChem CID 25812

1,1-Dimethoxynon-2-yne

IUPAC name: 1,1-dimethoxynon-2-yne

Molecular formula: C11H20O2
Molecular weight: 184.27 g/mol
Exact mass: 184.146329876 Da
XLogP3: 3.3
Topological polar surface area: 18.5 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

Parmavert2-Nonynal dimethylacetal2-Nonyne, 1,1-dimethoxy-2-Nonyn-1-al dimethylacetalEINECS 236-249-92-Nonyl-1-al dimethyl acetal2-NONYNAL, DIMETHYL ACETALBRN 4372599

7 more reported names

AI3-36004RefChem:71092236-249-92-nonynal dimethyl acetal2-Nonyn-1-al dimethyl acetalRPJGIPAAHSGBEZ-UHFFFAOYSA-NDB-270604

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID3051670

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 2-NONYN-1-AL DIMETHYLACETAL

INCI name

2-NONYN-1-AL DIMETHYLACETAL

Description

1,1-Dimethoxy-2-nonyne;

Record provenance

Inventory reference: 41000
Imported identity: 2-NONYN-1-AL DIMETHYLACETAL
Source update: 02/03/2011

European Commission CosIng source notes

Annex records for 2-NONYN-1-AL DIMETHYLACETAL

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Key data

CAS

13257-44-8

236-249-9

Restriction

—

Function

PERFUMING: Used for perfume and aromatic raw materials.

Ingredients with overlapping formulation functions

2-METHYLPROPYL-1-VINYLCYCLOHEXYL ACETATEPERFUMING

2-METHYLUNDECANOLPERFUMING

2-NAPHTHOLHAIR DYEING, PERFUMING

2-NONYLCROTONALDEHYDEPERFUMING

2-O-CRESYLETHANOLPERFUMING

2-OCTANOLPERFUMING

2-OCTENALPERFUMING

2-P-CRESYLETHANOLPERFUMING

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 2-NONYN-1-AL DIMETHYLACETAL appears in the CosIng inventory

The CosIng inventory lists 2-NONYN-1-AL DIMETHYLACETAL 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.

2-NONYN-1-AL DIMETHYLACETAL 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

2-NONYN-1-AL DIMETHYLACETAL 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, 2-NONYN-1-AL DIMETHYLACETAL carries the following function designation(s):

PERFUMING

CAS 13257-44-8 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 2-NONYN-1-AL DIMETHYLACETAL

This page reproduces the CosIng inventory entry for 2-NONYN-1-AL DIMETHYLACETAL 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 2-NONYN-1-AL DIMETHYLACETAL 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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Tools & next steps

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