Stearyl Triethoxysilane

INCI: STEARYL TRIETHOXYSILANE

CAS Number
3069-42-9
Function
Binding (pigment surface treatment/coating)
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted for cosmetic use; analogous triethoxysilanes reviewed favorably by CIR

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
negligible
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Reactive silane releases ethanol during hydrolysis/curing; ensure complete reaction before use; inhalation concerns in pressed/loose powder products โ€“ particle size must be controlled

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Concern Level: Low

Frequently Asked Questions

Is Stearyl Triethoxysilane safe in cosmetics?

Reactive silane releases ethanol during hydrolysis/curing; ensure complete reaction before use; inhalation concerns in pressed/loose powder products โ€“ particle size must be controlled The EU classifies Stearyl Triethoxysilane as "permitted". Safety rating: GOOD.

Is Stearyl Triethoxysilane allowed in the EU?

Stearyl Triethoxysilane EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Stearyl Triethoxysilane do in cosmetics?

Stearyl Triethoxysilane functions as: Binding (pigment surface treatment/coating). It is classified as a cosmetic ingredient in our database. CAS number: 3069-42-9.

What is the Margin of Safety for Stearyl Triethoxysilane?

adequate The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

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