Cyclohexene, 1-methyl-4-(1-methylethenyl)-, homopolymer (CAS 9003-73-0) — Citrus Fixative Note Fragrance Ingredient
Cyclohexene, 1-methyl-4-(1-methylethenyl)-, homopolymer
CAS 9003-73-0
What Is Cyclohexene, 1-methyl-4-(1-methylethenyl)-, homopolymer?
This synthetic polymer is used as a fixative in industrial fragrances and functional products like detergents. Consumers might encounter it in long-lasting air fresheners or fabric softeners. While not a primary scent, it helps stabilize fragrance blends, making scents linger longer on textiles and in the air.
Safety Profile
USE WITH AWARENESSWhat Does Cyclohexene, 1-methyl-4-(1-methylethenyl)-, homopolymer Smell Like?
This polymer is nearly odorless itself but acts as a molecular scaffold in fragrances. It subtly modifies scent diffusion, creating a controlled release effect. In blends, it provides a neutral backbone that extends the lifespan of more volatile top notes without altering their character.
Chemistry, Properties & Perfumer Guide
The Chemistry
A synthetic hydrocarbon polymer formed from limonene monomers. The repeating cyclohexene units create a stable, non-polar structure ideal for encapsulating fragrance molecules. Industrial synthesis typically involves cationic polymerization of terpene precursors under controlled conditions.
Physical & Chemical Properties
| Form | Amorphous solid |
|---|---|
| Solubility | Hydrophobic |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Functional Fragrances | 1-3% | Up to 5% | Enhances longevity |
| Detergents | 0.5-2% | Up to 3% | Textile fixation |
Classic Accords
Tip: Use with hydrophobic fragrances for optimal compatibility.
Alternatives & Comparisons
Water-soluble polymer alternative for hydrophilic fragrance systems.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
Not currently restricted by IFRA.
RIFM Assessment
Considered low risk in current applications.
Sustainability
Petroleum-derived synthesis raises environmental concerns. Some manufacturers are exploring bio-based terpene feedstocks to reduce carbon footprint. Not biodegradable but considered inert in wastewater systems.
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Ingredient Data Sheet
CAS 9003-73-0Odor & Flavor
| “At this level, the material does have Very faint, sweet-balsamic-fruity odor of a slightly pungent mouthfeel or taste, and excellent tenacity. The odor varies according should be accompanied by suitable sweetening to origin and ageof material.”📖 Arctander |
Physical data: PubChem (NIH/NLM), U.S. EPA CompTox Dashboard, EPA OPERA models, RDKit. Odor & flavor: Arctander (Perfume & Flavor Chemicals), Fenaroli's Handbook of Flavor Ingredients, Leffingwell. Thresholds: van Gemert (Compilations of Odour Threshold Values). Regulatory: IFRA Standards 51st, FEMA GRAS. Trade names: Surburg (Common Fragrance & Flavor Materials). All data compiled and cross-referenced for perfumertools.com.
