Oxirane, methyl-, polymer with oxirane, monobutyl ether (CAS 9038-95-3) — Citrus Non-aromatic Note Fragrance Ingredient

ByThe Good Scents
Citrus · Floral

Oxirane, methyl-, polymer with oxirane, monobutyl ether

CAS 9038-95-3

Origin
synthetic
Note
Non-aromatic
IFRA
Use with awareness
Data as of: Apr 2026

What Is Oxirane, methyl-, polymer with oxirane, monobutyl ether?

This synthetic polymer is used as a solvent and carrier in industrial fragrance applications. Consumers may encounter it in cleaning products or functional fragrances where controlled release is needed. While not directly contributing scent, it plays a technical role in fragrance performance by modifying viscosity and evaporation rates.

Safety Profile

USE WITH AWARENESS
Generally safeUse with awarenessProfessional use
✓ Industrial-grade safety protocols apply
⚠ Requires proper handling equipment
CAS
9038-95-3
Formula
Mixture
MW
Variable
Odor Family
Citrus · Floral
Layer 1 · Enthusiast

What Does Oxirane, methyl-, polymer with oxirane, monobutyl ether Smell Like?

This technical polymer is essentially odorless, functioning primarily as a solvent carrier rather than an aromatic contributor. Its molecular structure allows it to modulate the release of other fragrance components without imparting its own olfactory character.

Layer 2

Chemistry, Properties & Perfumer Guide

The Chemistry

A synthetic polyether formed through the polymerization of propylene oxide and ethylene oxide with butanol. The molecular weight distribution varies by manufacturing process. The butyl ether termination provides lipophilic character while the polyether backbone offers water compatibility.

Physical & Chemical Properties

AppearanceColorless liquid
FunctionSolvent/carrier

Perfumer Guide

Note Position
Non-aromatic
Volatility
Variable
Blending
Technical
ApplicationTypical %RangeNotes
Industrial Fragrances10-30%5-50%Carrier fluid
Cleaning Products15-25%10-40%Solvent system

Classic Accords

Tip: Use as a base solvent for fragrance oils requiring controlled release properties.

Alternatives & Comparisons

1
Dipropylene Glycol CAS 25265-71-8

Offers similar solvent properties with slightly higher polarity for more hydrophilic fragrance systems.

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

No specific IFRA restrictions apply to this technical polymer.

RIFM Assessment

Not evaluated by RIFM as it is not a direct fragrance ingredient.

Sustainability

Produced through petrochemical processes with energy-intensive polymerization. Some manufacturers offer bio-based glycol alternatives with similar performance characteristics.

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References

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

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    Ingredient Data Sheet

    CAS 9038-95-3
    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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