Good Cosmetic Ingredient NOAEL Data

Phenethyl Butyrate

INCI: PHENETHYL BUTYRATE

CAS Number
103-52-6
Function
Fragrance ingredient
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Not restricted by FDA; FEMA GRAS for food flavoring

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

3 study endpoints found for Phenethyl 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 1000 mg/kg bw/day other rat oral REACH
NOAEL 1000 mg/kg bw/day oral rat oral REACH
NOAEL 500 other oral rat oral REACH

Expert Verdict

Limited direct toxicological studies; safety assessment relies on structural class read-across and RIFM framework

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Concern Level: Low

Regulatory Flags

fragrance-component ifra_fragrance fda_food_additive jecfa_safe

Frequently Asked Questions

Is Phenethyl Butyrate safe in cosmetics?

Limited direct toxicological studies; safety assessment relies on structural class read-across and RIFM framework The EU classifies Phenethyl Butyrate as "permitted". Safety rating: GOOD. 3 toxicological study endpoint(s) are available in our database.

Is Phenethyl Butyrate allowed in the EU?

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

What does Phenethyl Butyrate do in cosmetics?

Phenethyl Butyrate functions as: Fragrance ingredient. It is classified as a cosmetic ingredient in our database. CAS number: 103-52-6.

What is the Margin of Safety for Phenethyl 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 Phenethyl Butyrate?

The NOAEL (No Observed Adverse Effect Level) for Phenethyl Butyrate is 1000 mg/kg bw/day based on a oral study via other route in rat. A total of 3 study endpoints are available. Source: REACH.

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