IONONE ALPHA

FLORAL • VIOLET • WOODY • FRUITY • FLORAL
Biobased index: < 50% • Biodegradability: Partially • Nature-identical

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 CHEMICAL STRUCTURE

Name: (E)-4-(2,6,6-Trimethylcyclohex-2-enyl)but-3-en-2-one (and isomers)
Molecular Formula: C₁₃H₂₀O
Synonym: 4-(2,6,6-Trimethylcyclohex-2-ene-1-yl)-but-3-ene-2-one
Molecular Weight: 192.30

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 OCCURRENCE IN NATURE

Occurs naturally in the essential oils of Boronia megastigma (brown boronia flowers), violet moss, renna, and costus root.

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APPLICATION INFORMATION

A versatile floral material widely used in fine perfumery.
Adds a delicate violet-floral nuance to fragrance compositions and blends harmoniously with rose, woody, amber, balsamic, and powdery notes.
Commonly used in reconstituted floral accords to impart warmth, depth, and powdery sophistication.

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STABILITY

ApplicationpHStability

Fine Fragrance–Good

Fabric Softener3Good

Antiperspirants3.5Good

Toiletry Applications6Good

Liquid Detergent9Good

Soap10Good

Powder Detergent11Good

Bleach14Poor

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SUBSTANTIVITY & DIFFUSIVITY

SurfacePerformance

SkinGood

Dry FabricGood

Wet FabricGood

HairGood

Bloom Diffusivity: Diffusive
Tenacity on Blotter: > 2 Days

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TYPICAL USE LEVEL

< 10% in final fragrance compositions depending on desired floral intensity.

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TECHNICAL DATA

• Flash Point: 110°C

• GC Purity: ≥ 70% as Ionone Alpha

• CAS No.: 127-41-3 / 14901-07-6

• FEMA reference No.: 2594

• CLogP: 4.29

• Vapor Pressure: 3.62 Pa at 25°C

• Appearance: Colorless to pale yellow liquid