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CAS 17980-47-1 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 9707515/04/2019

ISOBUTYLTRIETHOXYSILANE

Isobutyltriethoxysilane, trialkoxyisobutylsilane, triethoxy(2-methylpropyl)silane

ISOBUTYLTRIETHOXYSILANE 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 17980-47-1

CAS 17980-47-1PubChem CID 87391

Triethoxy(2-methylpropyl)silane

IUPAC name: triethoxy(2-methylpropyl)silane

Molecular formula: C10H24O3Si
Molecular weight: 220.38 g/mol
Exact mass: 220.14947116 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

Triethoxy(isobutyl)silaneIsobutyltriethoxysilaneTriethoxyisobutylsilaneSilane, triethoxy(2-methylpropyl)-0YZ0G6Z2XH(2-Methylpropyl)triethoxysilaneDC-1-6403SILANE, TRIETHOXYISOBUTYL-

16 more reported names

DYNASYLAN BSM 100NJ422.005FEC 402-810-3Z-6403DOW CORNING Z-6403 SILANERefChem:899458402-810-3605-871-6Tox21_301397T3734UNII-0YZ0G6Z2XHIsobutyltriethoxysilane, >=95%ALVYUZIFSCKIFP-UHFFFAOYSA-NEC 402-FS-3836CAS-17980-47-1

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEMBL:CHEMBL3186627
EPA DTXSID:DTXSID1044857
PubMed:22163384

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 ISOBUTYLTRIETHOXYSILANE

INCI name

ISOBUTYLTRIETHOXYSILANE

Description

Isobutyltriethoxysilane, trialkoxyisobutylsilane, triethoxy(2-methylpropyl)silane

Record provenance

Inventory reference: 97075
Imported identity: ISOBUTYLTRIETHOXYSILANE
Source update: 15/04/2019

European Commission CosIng source notes

Annex records for ISOBUTYLTRIETHOXYSILANE

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Key data

CAS

17980-47-1

402-810-3, 605-871-6

Restriction

—

Function

BINDING: Providing adhesive properties during and after compression in cosmetic tablets and/or cakes.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#13704 · ISOBUTYLTRIETHOXYSILANE

Ingredients with overlapping formulation functions

HYDROXYPROPYLTRISILOXYL IPDI/PEG-23 COPOLYMERBINDING, CLEANSING, SKIN CONDITIONING

HYDROXYSTEARIC/LINOLENIC/LINOLEIC POLYGLYCERIDESBINDING, EMULSION STABILISING, SKIN CONDITIONING - EMOLLIENT, VISCOSITY CONTROLLING

HYDROXYSTEARIC/LINOLENIC/OLEIC POLYGLYCERIDESBINDING, EMULSION STABILISING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

ISOBEHENIC ACIDBINDING; SKIN CONDITIONING - EMOLLIENT

ISOPHORONE DIAMINE/ISOPHTHALIC ACID/TROMETHAMINE COPOLYMERBINDING

ISOPROPYL ESTER OF PVM/MA COPOLYMERANTISTATIC, BINDING, EMULSION STABILISING, FILM FORMING, HAIR FIXING

ISOPROPYL ISOSTEARATEBINDING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

ISOPROPYL LANOLATEANTISTATIC, BINDING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SURFACTANT - EMULSIFYING

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 ISOBUTYLTRIETHOXYSILANE appears in the CosIng inventory

The CosIng inventory lists ISOBUTYLTRIETHOXYSILANE 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.

ISOBUTYLTRIETHOXYSILANE 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

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

BINDING

CAS 17980-47-1 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 ISOBUTYLTRIETHOXYSILANE

This page reproduces the CosIng inventory entry for ISOBUTYLTRIETHOXYSILANE 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 ISOBUTYLTRIETHOXYSILANE 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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