4-Ethylbenzaldehyde

INCI: 4-ETHYLBENZALDEHYDE

CAS Number
4748-78-1
Function
Fragrance (aromatic aldehyde with cherry/almond character)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Not specifically restricted by FDA; IFRA listed

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Aldehydes can form Schiff bases with skin proteins, creating sensitization risk; antioxidant protection in formulations recommended to limit auto-oxidation.

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Concern Level: Moderate

Regulatory Flags

potential-allergen fragrance-component ifra_fragrance fda_food_additive jecfa_safe

Frequently Asked Questions

Is 4-Ethylbenzaldehyde safe in cosmetics?

Aldehydes can form Schiff bases with skin proteins, creating sensitization risk; antioxidant protection in formulations recommended to limit auto-oxidation. The EU classifies 4-Ethylbenzaldehyde as "permitted". Safety rating: MODERATE.

Is 4-Ethylbenzaldehyde allowed in the EU?

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

What does 4-Ethylbenzaldehyde do in cosmetics?

4-Ethylbenzaldehyde functions as: Fragrance (aromatic aldehyde with cherry/almond character). It is classified as a cosmetic ingredient in our database. CAS number: 4748-78-1.

What is the Margin of Safety for 4-Ethylbenzaldehyde?

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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