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ACETALDEHYDE ETHYL LINALYL ACETAL.

Avoid CAS 40910-49-4 / PERFUMING

Acetaldehyde Ethyl Linalyl Acetal is a synthetic fragrance compound renowned for its fresh, green, and floral notes, specifically evoking the scent of muguet (lily of the valley). It is frequently utilized in cosmetic formulations to impart a pleasant aroma.

Fragrance

Science

This ingredient functions exclusively as a fragrance component, contributing a distinct olfactory profile to product formulations. It does not exert any direct biological or physiological effects on skin tissues; its role is solely sensory.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

As a fragrance ingredient, Acetaldehyde Ethyl Linalyl Acetal is not typically 'dusted' or misrepresented with unfounded skincare benefits.


The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

The compound exhibits stability in alkaline environments, with soda historically used during its synthesis to prevent undesirable by-product formation.


Safety

CIR Status
Not reviewed
Max tested
8%
Sensitization risk Moderate

Acetaldehyde Ethyl Linalyl Acetal is currently undergoing a comprehensive safety assessment by the Research Institute for Fragrance Materials (RIFM). It is classified as an irritant (Xi) and carries specific risk phrases (R 36/38) indicating potential irritation to both skin and eyes. While acute dermal and oral toxicity tests in animal models (rabbits and rats, respectively) suggest a non-toxic profile at very high doses (>= 5000 mg/kg), direct skin contact has been observed to cause irritation.


Your Skin

No Normal
No Dry
No Oily
No Sensitive
Irritancy Medium
Comedogenicity Unknown

Our Assessment

Avoid

Given its primary role as an irritant-classified fragrance and lack of direct skin benefits, Acetaldehyde Ethyl Linalyl Acetal is not recommended for precision skincare formulations.


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