Description

α-Ionone is a high-purity, naturally occurring ketone widely recognized for its characteristic woody, floral, and violet-like aroma. This compound is essential for creating sophisticated and complex fragrance profiles in a variety of consumer products. It is a key ingredient for manufacturers in the fragrance, flavor, and cosmetic industries seeking to enhance the sensory appeal of their formulations with a classic, elegant note.

Application

• Fragrance Formulation: A primary building block in fine perfumery for creating violet, iris, and woody accords in perfumes, colognes, and eau de toilettes.
• Flavor Enhancement: Used in trace amounts to impart fruity, berry-like nuances in food flavorings for beverages, confectionery, and dairy products.
• Cosmetics & Personal Care: Incorporated into soaps, lotions, shampoos, and creams as a fragrance component to provide a pleasant and lasting scent.
• Aromatherapy & Home Scents: A valuable component in essential oil blends, scented candles, and air fresheners for its calming and uplifting aromatic properties.
• Industrial Deodorants: Utilized in masking agents for industrial products, cleaning agents, and technical applications requiring odor control.
• Chemical Synthesis: Serves as a key intermediate or starting material in the synthesis of more complex fragrance molecules and fine chemicals.

Basic Information

Product Name	α-Ionone
CAS No.	127-41-3
Molecular Formula	C13H20O
Molecular Weight	192.30 g/mol
Synonyms	4-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-3-buten-2-one; (E)-4-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-3-buten-2-one; trans-α-Ionone; α-Cyclocitrylideneacetone; Irisone; Violet Ketone; Ionone alpha; 2-Buten-1-one, 4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-, (E)-
EINECS	204-841-6

Quality Control

Our α-Ionone is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. We adhere to relevant industry standards for fragrance and flavor ingredients. Comprehensive testing, including identity, purity, and olfactory profile assessment, is performed. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee compliance with your requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area at controlled room temperature (15-25°C). This material is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). Keep away from heat, sparks, and open flames. For long-term storage, consider filling the headspace with an inert gas such as nitrogen.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Odor	Characteristic woody, floral, violet-like
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 95.0%
Refractive Index (20°C)	1.497 - 1.502
Specific Gravity (20/20°C)	0.927 - 0.933
Solubility	Miscible with alcohol and oils; insoluble in water

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.