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3,4-DIHYDRO-5-METHYLNAPHTHALENONE.

Optional CAS 6939-35-1 / PERFUMING

A substituted tetralone compound that serves as a specialized fragrance component in cosmetic formulations. This lipophilic molecule contributes to the olfactory profile of skincare products without providing direct biological benefits for skin correction or improvement.

perfuming

Science

Functions exclusively as a perfuming agent through olfactory interaction rather than biological skin activity, contributing aromatic properties to cosmetic formulations without engaging in anti-aging, brightening, or other corrective skin mechanisms.


Research

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 RIFM safety assessment demonstrating no skin sensitization concerns at current usage levels through read-across data from analog 2,3,3-trimethylindanone
  2. 02 RIFM evaluation confirming non-photoirritating and non-photoallergenic properties based on UV/Vis spectra analysis

Transparency

Not commonly dusted

As a fragrance component with no therapeutic claims, dusting concerns are minimal since efficacy is measured through sensory experience rather than biological activity.


The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Exhibits lipophilic characteristics with LogP values between 1.615-2.40, demonstrating good solubility in alcohol and oil-based systems while remaining water-insoluble.

Conflicts

  • Strong oxidizing agents
  • Highly acidic environments that may compromise ketone stability

Safety

CIR Status
Not reviewed
Sensitization risk Low

EU CosIng database lists as approved perfuming agent with RIFM-established NOAEL of 150 mg/kg/day. Raw industrial form carries GHS/ECHA classification as potential irritant to skin, eyes, and respiratory system.


Your Skin

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

Our Assessment

Optional

A safe fragrance component suitable for non-sensitive skin types but offers no therapeutic benefits beyond sensory enhancement.


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