Poly(oxy-1,2-ethanediyl), a-undecyl-w-hydroxy- (CAS 34398-01-01) — Citrus None Note Fragrance Ingredient

ByThe Good Scents
Citrus · Floral

Poly(oxy-1,2-ethanediyl), a-undecyl-w-hydroxy-

CAS 34398-01-01

Origin
synthetic
Note
None
IFRA
Professional use
Data as of: Apr 2026

What Is Poly(oxy-1,2-ethanediyl), a-undecyl-w-hydroxy-?

Poly(oxy-1,2-ethanediyl), a-undecyl-w-hydroxy- is a synthetic polymer used in industrial applications and specialty formulations. It functions as a surfactant or emulsifier. Consumers may encounter it in certain cleaning products or industrial lubricants. Its importance lies in its ability to modify surface properties and stabilize formulations, though it is not typically used in consumer fragrances.

Safety Profile

PROFESSIONAL USE
Generally safeUse with awarenessProfessional use
⚠ Industrial chemical – not for consumer use
⚠ Requires proper handling and PPE
CAS
34398-01-01
Formula
Mixture
MW
Variable
Odor Family
Citrus · Floral
Layer 1 · Enthusiast

What Does Poly(oxy-1,2-ethanediyl), a-undecyl-w-hydroxy- Smell Like?

This synthetic polymer is generally odorless or has a very faint, nondescript chemical smell. It does not contribute significant olfactory characteristics to formulations and is primarily valued for its functional properties rather than any aromatic qualities.

Layer 2

Chemistry, Properties & Perfumer Guide

The Chemistry

Poly(oxy-1,2-ethanediyl), a-undecyl-w-hydroxy- is a polyethylene glycol derivative with an undecyl chain and terminal hydroxyl group. It is synthesized through polymerization of ethylene oxide, followed by introduction of the undecyl group. The polymer’s properties can be tuned by varying the length of the polyethylene glycol chain.

Physical & Chemical Properties

Perfumer Guide

Note Position
None
Volatility
None
Blending
None
ApplicationTypical %RangeNotes
IndustrialVariesAs neededNot used in perfumery

Classic Accords

Tip: This material is not used in fragrance formulation.

Alternatives & Comparisons

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

Not regulated by IFRA as it is not used in fragrance applications.

RIFM Assessment

Not assessed by RIFM as it is not a fragrance material.

Sustainability

As an industrial chemical, sustainability considerations focus on manufacturing efficiency and waste reduction. Being synthetic, it does not impact natural resources directly but requires energy for production.

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References

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

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