Acetic acid, cyano-, reaction products with 10-undecenal (CAS 124358-45-8) — Green Middle Note Fragrance Ingredient

Green · Woody

Acetic acid, cyano-, reaction products with 10-undecenal

CAS 124358-45-8

Origin
synthetic
Note
Middle
IFRA
Use with awareness
Data as of: Apr 2026

What Is Acetic acid, cyano-, reaction products with 10-undecenal?

This synthetic fragrance ingredient is a specialized chemical compound used in modern perfumery. It’s typically found in niche and avant-garde fragrances where unique molecular structures create unconventional scent profiles. The ingredient matters because it represents how modern chemistry expands perfumers’ palettes beyond traditional naturals, allowing for novel olfactory experiences that couldn’t exist in nature alone.

Safety Profile

USE WITH AWARENESS
Generally safeUse with awarenessProfessional use
Used in regulated fragrance compositions
Limited safety data available
CAS
124358-45-8
Formula
Mixture
MW
Variable
Odor Family
Green · Woody
Layer 1 · Enthusiast

What Does Acetic acid, cyano-, reaction products with 10-undecenal Smell Like?

This synthetic molecule creates a complex olfactory profile that evolves dramatically from application to dry-down. Initially presenting sharp, almost metallic green facets with a surprising fruity-woody undertone, it gradually reveals warmer amber-like characteristics. The dry-down suggests a sophisticated blend of clean laundry musk with faint citrusy highlights, creating an intriguing tension between freshness and depth.

Scent Profile
Layer 2

Chemistry, Properties & Perfumer Guide

The Chemistry

This synthetic compound is formed through the reaction of cyanoacetic acid with 10-undecenal, creating a novel molecular structure not found in nature. The reaction typically occurs under controlled conditions with acid catalysts. The resulting product belongs to the class of nitrogen-containing carbonyl compounds, which often exhibit unique olfactory properties due to their electron distribution patterns.

Physical & Chemical Properties

Perfumer Guide

Note Position
Middle
Volatility
Medium (2-4 hours)
Blending
Moderate
ApplicationTypical %RangeNotes
Fine Fragrance0.5-2%Up to 5%Used as a modifier in modern compositions
Functional Fragrance0.1-0.5%Up to 1%Limited use due to potency

Classic Accords

Tip: Use sparingly as it can dominate compositions at higher concentrations.

Alternatives & Comparisons

1
10-Undecenal CAS 112-45-8

Provides similar aldehyde character without the cyano modification, offering cleaner citrus-aldehyde notes.

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

General reference only. Consult current IFRA Standards Library before formulating.

IFRA Status

No specific IFRA restrictions currently apply to this material.

RIFM Assessment

Full safety assessment not yet completed by RIFM.

Sustainability

As a fully synthetic material, this compound avoids natural resource depletion but requires energy-intensive chemical synthesis. The production process should follow green chemistry principles to minimize environmental impact. Being petroleum-derived, its sustainability depends on the manufacturer’s commitment to responsible sourcing and waste reduction.

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References

    Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.

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    Ingredient Data Sheet

    CAS 124358-45-8
    Data Sources & Attribution
    Physical data: PubChem (NIH/NLM), U.S. EPA CompTox Dashboard, EPA OPERA models, RDKit. Odor & flavor: Arctander (Perfume & Flavor Chemicals), Fenaroli's Handbook of Flavor Ingredients, Leffingwell. Thresholds: van Gemert (Compilations of Odour Threshold Values). Regulatory: IFRA Standards 51st, FEMA GRAS. Trade names: Surburg (Common Fragrance & Flavor Materials). All data compiled and cross-referenced for perfumertools.com.

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