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DIBUTYL MALEATE.

Avoid CAS 105-76-0 / PERFUMING

Dibutyl Maleate is an alpha,beta-unsaturated ester primarily used in industrial applications such as plasticizers and polymerization. It is recognized as an irritant and skin sensitizer, lacking established cosmetic benefits.

Science

As an electrophilic compound, Dibutyl Maleate interacts with skin proteins via Michael-type conjugate additions. It can also enhance contact sensitization by facilitating dendritic cell trafficking and increasing cytokine production.


Research

Low confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Human patch tests at 0.1% reported sensitization reactions.
  2. 02 Direct skin application of 0.2-0.3 mL caused slight burning, prickling, and erythema (15-20 cm²) within 30-60 minutes.
  3. 03 Animal studies indicate enhanced contact hypersensitivity.

Transparency

Not commonly dusted

No data available to suggest common dusting practices or thresholds for cosmetic applications.


The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Chemically stable under recommended conditions, but transposes to fumaric acid dialkyl ester with heat or in presence of acids/bases. Contact with acids, bases, or strong oxidizing agents can lead to violent, exothermic reactions.

Conflicts

  • acids
  • bases
  • strong oxidizing agents

Safety

CIR Status
Not reviewed
Sensitization risk High

Dibutyl Maleate is not CIR reviewed and is considered an irritant and skin sensitizer, causing redness and burning even at 0.1% in humans. FDA listings for this ingredient are solely for industrial uses in adhesives and coatings, not direct cosmetic application.


Your Skin

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

Our Assessment

Avoid

Due to documented high irritancy and sensitization risks even at low concentrations, Dibutyl Maleate should be avoided in precision skincare formulations.


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