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Moumoujus

2-ISOBUTYLQUINOLINE.

Optional CAS 93-19-6 / PERFUMING

A specialized fragrance molecule that delivers distinctive leathery, earthy, and tobacco-like scent notes to cosmetic formulations. This quinoline derivative functions primarily as an olfactory enhancer and fixative, providing long-lasting fragrance performance across diverse product categories. While not an active skincare ingredient, it plays a crucial role in sensory experience and product appeal.

Summary

perfuming fragrance fixative odor masking

Science

Mechanism of Action

Functions exclusively through olfactory enhancement rather than physiological skin effects. Provides fragrance fixation properties that extend scent longevity and acts as an odor-masking agent to improve overall product sensory profile.

Research

Clinical Evidence

Medium confidence
Effective range ≤2%
Optimal

N/A

Key findings

  1. 01 TTC evaluation at 0.0015 mg/kg/day showed no toxicological concerns for repeated exposure
  2. 02 IFRA assessment confirmed safety at 2.0% maximum usage level in fragrance concentrates

Transparency

Dusting Analysis

Not commonly dusted

As a specialty fragrance ingredient rather than an active compound, dusting concerns are not applicable to this component

The Formula

Formulation

Solubility
Oil
Optimal pH 2 – 11
0 7 14

Stability

Demonstrates exceptional stability across wide pH spectrum from highly acidic to alkaline conditions. Shows remarkable tenacity with 160+ hour performance on testing substrates. Temperature-sensitive during processing.

Conflicts

  • Strong oxidizing agents
  • Processing temperatures exceeding 40°C

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
2%
Sensitization risk Low

RIFM-assessed with IFRA transparency listing. Classified as non-photoirritating and non-photoallergenic. OSHA GHS majority classification shows no significant hazard concerns.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Verdict

Optional

A well-tolerated specialty fragrance ingredient that enhances sensory experience without providing therapeutic skin benefits.

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