Ethyl Crotonate

INCI: ETHYL CROTONATE

CAS Number
10544-63-5 [^1_20]
Function
Fragrance ingredient with ethereal, fruity note
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status prohibited
🇺🇸 US Status permitted
US Notes Permitted — no 21 CFR cosmetic prohibition; OSHA protective equipment may apply at industrial concentrations

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.

Expert Verdict

Skin irritant (H315), eye irritant (H319), respiratory irritant (H335); corrosive at neat concentration; lachrymator; must be used only at dilute fragrance levels; highly flammable (flash point 36°F)

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Concern Level: Moderate

Regulatory Flags

fragrance-component ifra_fragrance fda_food_additive

Frequently Asked Questions

Is Ethyl Crotonate safe in cosmetics?

Skin irritant (H315), eye irritant (H319), respiratory irritant (H335); corrosive at neat concentration; lachrymator; must be used only at dilute fragrance levels; highly flammable (flash point 36°F) The EU classifies Ethyl Crotonate as "prohibited". Safety rating: MODERATE.

Is Ethyl Crotonate allowed in the EU?

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

What does Ethyl Crotonate do in cosmetics?

Ethyl Crotonate functions as: Fragrance ingredient with ethereal, fruity note. It is classified as a cosmetic ingredient in our database. CAS number: 10544-63-5 [^1_20].

What is the Margin of Safety for Ethyl Crotonate?

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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