Cyclopentaneacetonitrile, 2,4,4-trimethyl–methylene- (CAS 1266606-13-6) — Citrus Unknown Note Fragrance Ingredient

Citrus · Floral

Cyclopentaneacetonit_rile, 2,_4,_4-_trimethyl-__-_methylene-

CAS 1266606-13-6

Origin
synthetic
Note
Unknown
IFRA
Professional use
Data as of: Apr 2026

What Is Cyclopentaneacetonit_rile, 2,_4,_4-_trimethyl-__-_methylene-?

This synthetic fragrance ingredient is a specialized chemical used in modern perfumery. It’s typically found in niche and experimental fragrances that push creative boundaries. While not commonly encountered in everyday products, it represents perfumers’ continuous innovation to develop novel scent profiles that challenge traditional olfactory categories.

Safety Profile

PROFESSIONAL USE
Generally safeUse with awarenessProfessional use
Limited safety data available
Professional handling recommended
CAS
1266606-13-6
Formula
Mixture
MW
Variable
Odor Family
Citrus · Floral
Layer 1 · Enthusiast

What Does Cyclopentaneacetonit_rile, 2,_4,_4-_trimethyl-__-_methylene- Smell Like?

Due to insufficient data on this specialized synthetic compound, a detailed olfactory profile cannot be accurately described. Such novel ingredients are typically evaluated by perfumers for unique odor characteristics that may offer new dimensions to fragrance creation, potentially providing unusual woody, green, or musky nuances depending on molecular structure and concentration.

Layer 2

Chemistry, Properties & Perfumer Guide

The Chemistry

This compound appears to be a synthetic nitrile derivative with a complex cyclopentane structure. Nitriles in perfumery often provide fresh, green, or citrus-like characteristics, though the specific odor profile of this particular structure would require empirical evaluation. The trimethyl and methylene substitutions suggest possible woody or musky undertones, but without proper analytical data, its exact olfactory properties remain speculative.

Physical & Chemical Properties

Boiling PointNot available
DensityNot available

Perfumer Guide

Note Position
Unknown
Volatility
Unknown
Blending
Unknown
ApplicationTypical %RangeNotes
Experimental FragranceTrace amountsNot establishedPotential modifier for novel accords

Classic Accords

Tip: Conduct extensive testing at low concentrations before incorporating into formulations.

Alternatives & Comparisons

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

No IFRA restrictions listed – insufficient data available.

RIFM Assessment

No RIFM safety assessment found for this compound.

Sustainability

As a synthetic compound with limited production data, sustainability considerations are unknown. Synthetic ingredients generally offer consistent quality and reduced environmental impact compared to natural harvesting, but specific manufacturing processes for this chemical would need evaluation.

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References

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

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    Ingredient Data Sheet

    CAS 1266606-13-6
    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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