2-Propenoic acid, polymer with 2-propenamide, sodium salt (CAS 25987-30-8) — Citrus Non-olfactive Note Fragrance Ingredient
2-_Propenoic acid, polymer with 2-_propenamide, sodium salt
CAS 25987-30-8
What Is 2-_Propenoic acid, polymer with 2-_propenamide, sodium salt?
2-Propenoic acid polymer is a synthetic ingredient primarily used in industrial applications and some personal care products as a thickening agent or stabilizer. Consumers may encounter it in hair gels, lotions, or cleaning products where texture modification is needed. While not a fragrance ingredient itself, this polymer plays a supporting role in product formulations by modifying viscosity and improving stability of fragranced products.
Safety Profile
GENERALLY SAFEWhat Does 2-_Propenoic acid, polymer with 2-_propenamide, sodium salt Smell Like?
This synthetic polymer is odorless in its pure form, serving as a functional ingredient rather than a fragrance component. When incorporated into products, it may slightly modify the release profile of other fragrance ingredients due to its thickening properties, but contributes no discernible scent of its own.
Chemistry, Properties & Perfumer Guide
The Chemistry
2-Propenoic acid polymer with 2-propenamide is a synthetic copolymer formed through radical polymerization of acrylic acid and acrylamide monomers, subsequently neutralized with sodium hydroxide. The resulting water-soluble polymer exhibits anionic character due to carboxylate groups. The ratio of monomers and degree of polymerization can be adjusted to achieve specific rheological properties. This material is produced exclusively through industrial chemical synthesis with no natural occurrence.
Physical & Chemical Properties
| Appearance | White powder or granules |
|---|---|
| Solubility | Water-soluble |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Personal Care | 0.5-2% | Up to 5% | Viscosity modifier |
| Cleaning Products | 1-3% | Up to 10% | Stabilizer |
Classic Accords
Tip: Use as a rheology modifier to control fragrance release in thickened systems.
Alternatives & Comparisons
Another acrylic acid-based polymer offering similar thickening properties with different rheological profile.
Higher performance thickener for clear gel formulations requiring fragrance stabilization.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
Not restricted by IFRA as it is not a fragrance material.
GHS Classification
RIFM Assessment
Not evaluated by RIFM as it is not a fragrance material.
Sustainability
As a synthetic polymer, this material is produced from petrochemical feedstocks. While energy-intensive in production, it is used at low concentrations and has minimal environmental impact during use. Proper industrial handling prevents release into waterways where high concentrations could affect aquatic systems.
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References
- Cosmetic Ingredient Review (CIR). Safety Assessment of Acrylates Copolymers. CIR Report
- European Chemicals Agency (ECHA). Substance Information. ECHA Entry
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
Report a data errorIngredient Data Sheet
CAS 25987-30-8Physical 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.
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