Alpha-Ionone
CAS Number: 127-41-3
Alpha-Ionone (CAS 127-41-3) is a naturally occurring cyclic terpene ketone with a sweet, floral, violet, and slightly woody fragrance character, found in raspberries, osmanthus, and various essential oils. It is synthesized from citral and acetone, and is a key fragrance ingredient in violet, woody, and floral fine perfumery and personal care applications.
Technical Specifications
| appearance | Colorless to pale yellow liquid |
| purity (%) | ≥97.0 |
| assay method | GC |
| refractive index | 1.497–1.502 |
Applications
- Violet and floral fragrance compositions in fine perfumery
- Raspberry and fruit flavor in food and beverage applications
- Personal care and cosmetic product fragrancing with floral character
- Woody and oriental fragrance base note applications
- Intermediate for synthesis of vitamin A and carotenoids
Key Features
- Elegant violet-floral-woody aroma with excellent diffusion and longevity
- Important precursor for vitamin A and retinoid synthesis in pharmaceutical industry
- IFRA compliant and FEMA GRAS recognized for food and fragrance applications
- Synthesized from natural citral feedstock via selective Knoevenagel-type condensation