Styrenated alpha-hydro-omega-phenoxypoly(oxyethylene) (CAS 104376-75-2) — Citrus Non-aromatic Note Fragrance Ingredient

Citrus · Floral

Styrenated alpha-hydro-omega-phenoxypoly(oxyethylene)

CAS 104376-75-2

Origin
synthetic
Note
Non-aromatic
IFRA
Professional use
Data as of: Apr 2026

What Is Styrenated alpha-hydro-omega-phenoxypoly(oxyethylene)?

Styrenated alpha-hydro-omega-phenoxypoly(oxyethylene) is a synthetic polymer used in industrial applications and some functional fragrances. It is not commonly found in consumer products but may appear in specialized formulations. This ingredient is valued for its unique chemical properties that contribute to stability and performance in specific fragrance systems, though it is not a traditional aromatic compound.

Safety Profile

PROFESSIONAL USE
Generally safeUse with awarenessProfessional use
Limited safety data available
Not for consumer products
CAS
104376-75-2
Formula
Mixture
MW
Variable
Odor Family
Citrus · Floral
Layer 1 · Enthusiast

What Does Styrenated alpha-hydro-omega-phenoxypoly(oxyethylene) Smell Like?

This synthetic polymer is not primarily used for its odor profile. It may have minimal olfactory characteristics, often described as neutral or faintly chemical. Its role in fragrance is typically functional rather than aromatic, serving as a stabilizer or modifier in complex formulations.

Layer 2

Chemistry, Properties & Perfumer Guide

The Chemistry

Styrenated alpha-hydro-omega-phenoxypoly(oxyethylene) is a synthetic polymer derived from the polymerization of ethylene oxide with styrene derivatives. It belongs to the class of polyethers and is characterized by its high molecular weight and stability. The styrenation introduces aromatic character to the poly(oxyethylene) backbone, enhancing its compatibility with other fragrance components. Synthesis typically involves controlled polymerization under catalytic conditions, often using metal alkoxides or other specialized catalysts.

Physical & Chemical Properties

Boiling PointNot available
DensityNot available

Perfumer Guide

Note Position
Non-aromatic
Volatility
Low
Blending
Functional
ApplicationTypical %RangeNotes
Industrial Fragrance0.1-1%Up to 2%Stabilizer and modifier

Classic Accords

Tip: Use as a functional additive in specialized formulations where stability is critical.

Alternatives & Comparisons

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

No specific IFRA restrictions noted for this ingredient.

RIFM Assessment

No RIFM assessment available for this ingredient.

Sustainability

As a synthetic polymer, this ingredient is produced through industrial chemical processes. Its environmental impact is largely dependent on manufacturing practices, with potential concerns around energy use and chemical waste. There are no known natural alternatives with equivalent functional properties.

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References

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

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