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CAS 2031-67-6 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 9107502/12/2013

METHYLTRIETHOXYLANE

Methyltriethoxysilane is the organic compound

METHYLTRIETHOXYLANE 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.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 2031-67-6

CAS 2031-67-6PubChem CID 16241

Triethoxymethylsilane

IUPAC name: triethoxy(methyl)silane

Molecular formula: C7H18O3Si
Molecular weight: 178.30 g/mol
Exact mass: 178.10252097 Da
Topological polar surface area: 27.7 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 3
Covalent units: 1
Defined stereocentres: 0

Also known as

MethyltriethoxysilaneMethyl triethoxysilaneSilane, triethoxymethyl-TriethoxysilylmethaneUnion carbide A-162ICI-EP 5850SILANE, METHYLTRIETHOXY-MTES

16 more reported names

A 162Methaneorthosiliconic acid, triethyl esterNSC 5226N811L6SAVLNSC5226NSC-5226Dynasylan MTESCCRIS 1323EINECS 217-983-9UNII-N811L6SAVLBRN 1742453CM9050methyl triethoxy silanemethyl(triethoxy)silaneEC 217-983-9Triethoxymethylsilane, 99%

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEMBL:CHEMBL3184635
EPA DTXSID:DTXSID6042490
PubMed:23031700
PubMed:22369751
PubMed:22346609
PubMed:22247685
PubMed:22163761
PubMed:21482262
PubMed:21446533
PubMed:21120245
PubMed:20870240
PubMed:20822773
PubMed:19720382
PubMed:19253273

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 METHYLTRIETHOXYLANE

INCI name

METHYLTRIETHOXYLANE

Description

Methyltriethoxysilane is the organic compound

Record provenance

Inventory reference: 91075
Imported identity: METHYLTRIETHOXYLANE
Source update: 02/12/2013

European Commission CosIng source notes

Annex records for METHYLTRIETHOXYLANE

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Key data

CAS

2031-67-6

217-983-9

Restriction

—

Function

SMOOTHING: Seeking to achieve an even skin surface by decreasing roughness or irregularities.

Records sharing a CAS or EC identity

METHYLTRIETHOXYSILANE

Ingredients with overlapping formulation functions

IODIZED CORN PROTEINSMOOTHING

IODIZED HYDROLYZED ZEINSMOOTHING

MALVA SYLVESTRIS EXTRACTASTRINGENT, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SMOOTHING, SOOTHING

MARANTA ARUNDINACEA ROOT EXTRACTSMOOTHING

MORUS BOMBYCIS LEAF EXTRACTSMOOTHING

NIACINANTISTATIC, SMOOTHING

NIACINAMIDESMOOTHING

ORYZA SATIVA CERAHAIR CONDITIONING, SKIN CONDITIONING, SKIN PROTECTING, SMOOTHING, VISCOSITY CONTROLLING

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 METHYLTRIETHOXYLANE appears in the CosIng inventory

The CosIng inventory lists METHYLTRIETHOXYLANE 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.

METHYLTRIETHOXYLANE 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

METHYLTRIETHOXYLANE 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, METHYLTRIETHOXYLANE carries the following function designation(s):

SMOOTHING

CAS 2031-67-6 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 METHYLTRIETHOXYLANE

This page reproduces the CosIng inventory entry for METHYLTRIETHOXYLANE 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 METHYLTRIETHOXYLANE 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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