Official EU label nameGlossary entry 29255

TRIMETHOXYCAPRYLYLSILANE

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

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Evidence gaps

Resolved identifiers

Resolved substance identity

CAS:3069-40-7

EC:221-338-7

Ingredient index records:

TRIMETHOXYCAPRYLYLSILANE

Cosmetic functions: BINDING, SMOOTHING

Trimethoxyoctylsilane

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1 matched or reported name

TRIMETHOXYCAPRYLYLSILANE

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name TRIMETHOXYCAPRYLYLSILANE.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 3069-40-7

CAS 3069-40-7PubChem CID 76485

Trimethoxycaprylylsilane

IUPAC name: trimethoxy(octyl)silane

Molecular formula: C11H26O3Si
Molecular weight: 234.41 g/mol
Exact mass: 234.16512122 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

TrimethoxyoctylsilaneOctyltrimethoxysilaneSilane, trimethoxyoctyl-FZ07E4LW2MEINECS 221-338-7EC 221-338-7RefChem:899730TRIMETHOXYCAPRYLYLSILANE [INCI]

15 more reported names

221-338-7N-OctyltrimethoxysilaneUNII-FZ07E4LW2MC11H26O3SiTrimethoxy-n-octylsilane1-(Trimethoxysilyl)octanetrimethoxy-octylsilaneHydrophobicity silanesTrimethoxy(octyl)silane, 96%NMEPHPOFYLLFTK-UHFFFAOYSA-Synonym(s): OctyltrimethoxysilaneNMEPHPOFYLLFTK-UHFFFAOYSA-NDS-4069CS-0147110InChI=1/C11H26O3Si/c1-5-6-7-8-9-10-11-15(12-2,13-3)14-4/h5-11H2,1-4H3

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External database identifiers

EPA DTXSID:DTXSID80863094
PubMed:22806471
PubMed:21936378
PubMed:20615283
PubMed:19782372
PubMed:19428242
PubMed:18462785
PubMed:18196532
PubMed:17592866
PubMed:17154592
PubMed:17111405
PubMed:15792535

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

Additional authoritative substance research

Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight

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 US EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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