Buteth-3

INCI: BUTETH-3

CAS Number
29911-28-2 (butyl alcohol, ethoxylated, ~3 EO)
Function
Solvent
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Adequate (CIR group assessment)

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
moderate
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Ethoxylated ingredient requiring 1,4-dioxane and ethylene oxide residual impurity testing.

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Concern Level: Low

Frequently Asked Questions

Is Buteth-3 safe in cosmetics?

Ethoxylated ingredient requiring 1,4-dioxane and ethylene oxide residual impurity testing. The EU classifies Buteth-3 as "permitted". Safety rating: GOOD.

Is Buteth-3 allowed in the EU?

Buteth-3 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Buteth-3 do in cosmetics?

Buteth-3 functions as: Solvent. It is classified as a cosmetic ingredient in our database. CAS number: 29911-28-2 (butyl alcohol, ethoxylated, ~3 EO).

What is the Margin of Safety for Buteth-3?

not established 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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