Excellent Cosmetic Ingredient NOAEL Data

Ethyl Butyrate

INCI: ETHYL BUTYRATE

CAS Number
105-54-4
Function
Perfuming, Masking
Safety Rating
EXCELLENT

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes FEMA GRAS #2427 (21 CFR 182.60); no FDA cosmetic restrictions

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
high
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

4 study endpoints found for Ethyl Butyrate. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
NOAEL 0.06 mg/L air 1991 rat inhalation REACH
NOAEL 14.4 other oral rat oral REACH
NOAEL 1000 mg/kg bw/day oral rat oral REACH
NOAEL 500 mg/kg bw/day oral rat oral REACH

Expert Verdict

Ethyl Butyrate is an unrestricted Cramer Class I fragrance ester with MOEs exceeding 40,000x, no allergen-labeling requirement, and no IFRA limits.

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Concern Level: None

Regulatory Flags

epa_safer_alternative ifra_fragrance fda_food_additive

Frequently Asked Questions

Is Ethyl Butyrate safe in cosmetics?

Ethyl Butyrate is an unrestricted Cramer Class I fragrance ester with MOEs exceeding 40,000x, no allergen-labeling requirement, and no IFRA limits. The EU classifies Ethyl Butyrate as "permitted". Safety rating: EXCELLENT. 4 toxicological study endpoint(s) are available in our database.

Is Ethyl Butyrate allowed in the EU?

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

What does Ethyl Butyrate do in cosmetics?

Ethyl Butyrate functions as: Perfuming, Masking. It is classified as a Cosmetic Ingredient in our database. CAS number: 105-54-4.

What is the Margin of Safety for Ethyl Butyrate?

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.

What is the NOAEL for Ethyl Butyrate?

The NOAEL (No Observed Adverse Effect Level) for Ethyl Butyrate is 0.06 mg/L air based on a inhalation study via 1991 route in rat. A total of 4 study endpoints are available. Source: REACH.

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