Official EU label nameGlossary entry 5412

CAPRYLYL TRISILOXANE

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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Resolved identifiers

Resolved substance identity

CAS:17955-88-3

EC:241-881-3

Ingredient index records:

CAPRYLYL TRISILOXANE

Cosmetic functions: SKIN CONDITIONING

Trisiloxane, 1,1,1,3,5,5,5-heptamethyl-3-octyl-

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1 matched or reported name

CAPRYLYL TRISILOXANE

Regulatory evidence across markets

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

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 17955-88-3

CAS 17955-88-3PubChem CID 87373

Caprylyl trisiloxane

The Expert Panel for Cosmetic Ingredient Safety concluded that the following 30 dimethicone, methicone, and substituted-methicone polymers are safe in cosmetics in the present practices of use and concentration described in this safety assessment when formulated to be non-irritating, with the exception that the available data are insufficient to make a determination of safety for use of these ingredients in products that may be incidentally inhaled when applied using airbrush devices: Caprylyl Methicone — Cosmetic Ingredient Review (CIR)

IUPAC name: trimethyl-(methyl-octyl-trimethylsilyloxysilyl)oxysilane

Molecular formula: C15H38O2Si3
Molecular weight: 334.72 g/mol
Exact mass: 334.21796005 Da
Topological polar surface area: 18.5 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

1,1,1,3,5,5,5-Heptamethyl-3-octyltrisiloxaneCaprylyl methiconeTrisiloxane, 1,1,1,3,5,5,5-heptamethyl-3-octyl-EINECS 241-881-3heptamethyloctyltrisiloxaneQ95M2P1KJLoctylheptamethyltrisiloxaneSILSOFT 034

16 more reported names

SILCARE 41M15SS 3408BRB CAPRYLYL METHICONEBIS(TRIMETHYLSILOXY)OCTYLMETHYLSILANERefChem:573792CAPRYLYL METHICONE [INCI]CAPRYLYL TRISILOXANE [INCI]241-881-33-OCTYLHEPTAMETHYLTRISILOXANEUNII-Q95M2P1KJLC15H38O2Si3SCRSFLUHMDMRFP-UHFFFAOYSA-N3-OCTYLHEPTAMETHYLTRISILOXANE?AS-90787DB-3155403-octyl-1,1,1,3,5,5,5-heptamethyltrisiloxane

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External database identifiers

EPA DTXSID:DTXSID6051807

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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