Butyl Butyrate

INCI: BUTYL BUTYRATE

CAS Number
109-21-7
Function
Solvent, masking agent, fragrance ingredient
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Adequate โ€” supported by food-grade safety data and CIR group review

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
moderate
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Volatile and flammable fragrance ingredient requiring appropriate storage and handling precautions; not a dermal safety concern at typical cosmetic concentrations.

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Concern Level: Low

Regulatory Flags

fragrance-component ifra_fragrance fda_food_additive jecfa_safe

Frequently Asked Questions

Is Butyl Butyrate safe in cosmetics?

Volatile and flammable fragrance ingredient requiring appropriate storage and handling precautions; not a dermal safety concern at typical cosmetic concentrations. The EU classifies Butyl Butyrate as "permitted". Safety rating: GOOD.

Is Butyl Butyrate allowed in the EU?

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

What does Butyl Butyrate do in cosmetics?

Butyl Butyrate functions as: Solvent, masking agent, fragrance ingredient. It is classified as a cosmetic ingredient in our database. CAS number: 109-21-7.

What is the Margin of Safety for Butyl Butyrate?

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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