Lorexan A Bright, Fresh Citrus Floral Molecule for Modern Compositions

✅ What It Is & What It Smells Like

Lorexan is a synthetic aromatic material with a fresh citrus, green, and soft gardenia-like floral profile.It is widely used to add clean freshness, natural brightness, and lift to citrus and floral accords.

Key Aroma Descriptors:

 • CITRUS

• FRESH

• GA

RDENIA

• GREEN

• CLEAN

Diffusion: Very diffusiveImpact: Medium–strong

🧪 Chemical Structure

• Chemical Name: 2,4,6-Trimethyl-4-phenyl-1,3-dioxane

• Molecular Formula: C₁₃H₁₈O₂

• Molecular Weight: 206.85

• CAS No.: 5182-36-5

• GC Purity: 97% min (sum of two isomers)

• Appearance: Colorless liquid

• Flash Point: 114°C

• Vapor Pressure: 0.39 Pa at 25°C

• CLogP: 3.11

🌿 Natural Occurrence

❌ Not found in nature(fully synthetic ingredient).

🎨 Application in Perfumery

Used in many compositions, especially:

• Citrus accords (lemon/orange/grapefruit boosters)

• White floral accords (gardenia, lily, jasmine enhancers)

• Green, fresh, and clean fragrances

• Modern airy/fresh top notes

Effect:Adds a clean, bright, natural citrus freshness with a subtle floral nuance.

Typical Use Level: < 6%(Top-note modifier levels are usually 0.5–3%.)

🧴 Stability

Application	Stability
Fine Fragrance	Good
Fabric Softener (pH 3)	Good
Antiperspirants (pH 3.5)	Good
Toiletries (pH 6)	Good
Liquid Detergent (pH 9)	Good
Soap (pH 10)	Good
Powder Detergent (pH 11)	Good
Bleach (pH 14)	Fair

✔ Generally very stable across most consumer product applications

⚠ Slightly reduced stability in highly alkaline bleach systems.

👃 Substantivity

Surface	Substantivity
Skin	Fair
Dry Fabric	Fair
Wet Fabric	Fair
Hair	Fair

Lorexan acts mainly as a top-to-heart material with moderate substantivity.

⏱ Tenacity on Blotter

• Hours: 0

• Days: > 2

• Weeks: 0

It shows a clear, immediate freshness in the opening, with a light residual presence that lasts for a couple of days.

🌬 Bloom Diffusivity

Very diffusiveIdeal for creating airy lift and radiance in the top of a fragrance.

🧯 Safety / Assessment

• Amount in palette: < 50%

• Assessment: Not Assessed

(Not yet listed under complete IFRA or full toxicological review in available databases.)

🎯 Summary Where Lorexan Excels

✔ Adds natural, clean, sparkling citrus freshness

✔ Boosts white florals with a subtle gardenia nuance

✔ Excellent in fresh, citrus, green, airy fragrances

✔ High stability in most product bases

✔ Strong diffusion, making top notes more vivid

This article was researched and written by Galbora.

Use of this content is permitted when citing the source.

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