alpha-ionone

CAS Number
127-41-3
EC Number
204-841-6
Chemical Formula
C13H20O
Molecular Weight
192.30 g/mol
FEMA Number
FEMA 2594

Description

Alpha-ionone (CAS 127-41-3), also known by its FEMA 2594 designation, is a synthetic aroma chemical prized for its violet, woody, and orris-like scent profile. It is used across fragrance and flavor manufacturing as a key building block for fine perfumery and food flavoring systems. In fine fragrance and personal care formulations, alpha-ionone contributes a soft violet and floral character to perfumes, body lotions, and hair care products. It blends effectively with rose, iris, and musky bases to create sophisticated olfactory profiles.

Food and beverage manufacturers use it as a FEMA-approved flavoring agent to impart berry, raspberry, and woody nuances in confectionery, baked goods, and beverages. It is a versatile component for creating realistic fruit profiles in various applications. In functional flavor systems, it supports the construction of complex top and heart notes where natural orris or violet extracts would be cost-prohibitive. This makes it an essential tool for flavorists seeking high-quality results at a competitive price point.

Printing and packaging applications leverage its scent stability in scented inks and encapsulated fragrance coatings for consumer packaging. This ensures a long-lasting sensory experience for the end consumer throughout the product's shelf life. Alpha-ionone is supplied as a clear to pale yellow liquid. It is available in flavor-grade and fragrance-grade specifications, with FEMA 2594 status confirming its suitability for food and beverage use across global markets.

Standard packaging ranges from small drums to bulk quantities depending on application volume requirements. Our supply chain ensures that the product meets rigorous quality standards for consistency and purity in every batch delivered.

Other Names (Synonyms)

alpha-(E)-ionone|(E)-alpha-Ionone|(E)-4-(2,6,6-trimethylcyclohex-2-en-1-yl)but-3-en-2-one|(3E)-4-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-3-buten-2-on|trans-alpha-Ionone|alpha-cyclocitrylideneacetone|alpha-Ionon|(3E)-4-(2,6,6-trimethylcyclohex-2-en-1-yl)but-3-en-2-one

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

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Physical Properties

Melting Point <25 °C
Boiling Point 124-126 °C @ Press: 10 Torr
Density 0.92 g/cm³ @ Temp: 30 °C
Flash Point 230 °F
Appearance clear yellow liquid
Color Clear Colourless
Odor at 10.00 % in dipropylene glycol. sweet woody floral violet orris tropical fruity
Form Oil
Water Solubility insoluble
Vapor Pressure 0.133Pa
Refractive Index n 20/D 1.498(lit.)
Log P 3.85 at 37℃

Documentation

Safety & Handling Learn More

Warning
GHS07· Irritant GHS08· Health Hazard

Hazard Statements

H315 Causes skin irritation
H317 May cause an allergic skin reaction
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled

Precautionary Statements

P233 Keep container tightly closed.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.

Trade & Regulatory

HS Code 29142300
WGK (Germany) 2
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