Get a Free 5ml Mini Now Free 5ml Mini With Every Order of The Mantle

4-FORMYL-2-METHOXYPHENYL ISOBUTYRATE.

Optional CAS 20665-85-4 / PERFUMING

A synthetic vanillin derivative engineered specifically for fragrance applications, offering superior stability and reduced discoloration compared to traditional vanillin. This ester compound serves as both a scent fixative and masking agent in cosmetic formulations.

Perfuming Fragrance fixative Masking agent

Science

Functions as a fragrance fixative by reducing the evaporation rate of volatile aromatic molecules through molecular interactions. Does not demonstrate bioactive skin pathways beyond sensory modification and odor masking properties.


Research

Medium confidence
Effective range 0.02–0.6%
Optimal

0.6%

Key findings

  1. 01 Demonstrates effective fragrance fixation and vanillic sensory enhancement without vanillin's typical discoloration issues
  2. 02 Established No Observed Effect Level for photoirritation responses

Transparency

Not commonly dusted

Primarily used for fragrance purposes rather than marketed skincare benefits, reducing likelihood of concentration exaggeration


The Formula

Solubility
Oil
Optimal pH 3 – 10
0 7 14

Stability

Exceptional stability in alkaline conditions (pH 9-10), significantly more resistant to discoloration than vanillin

Conflicts

  • Strong oxidizing agents
  • Extremely acidic environments below pH 3

Safety

CIR Status
Not reviewed
Max tested
0.6%
Sensitization risk Low

RIFM 2024 assessment establishes 0.6% maximum safe-use level based on photoirritation data. IFRA compliant at current usage levels.


Your Skin

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

Our Assessment

Optional

A stable fragrance ingredient with no demonstrated skincare benefits beyond sensory enhancement.


Related

Finding similar ingredients…