Butene, homopolymer (CAS 9003-29-6) — Citrus N/A Note Fragrance Ingredient

Citrus · Floral

Butene, homopolymer

CAS 9003-29-6

Origin
synthetic
Note
N/A
IFRA
Professional use
Data as of: Apr 2026

What Is Butene, homopolymer?

Butene homopolymer is a synthetic polymer used as a base material in various industrial applications, including adhesives and coatings. It’s not commonly encountered in consumer products but may appear in specialized formulations. This ingredient serves as a structural component rather than a fragrance, valued for its physical properties in material science applications.

Safety Profile

PROFESSIONAL USE
Generally safeUse with awarenessProfessional use
Industrial handling precautions required
🚫 Not for direct consumer use
CAS
9003-29-6
Formula
Mixture
MW
Variable
Odor Family
Citrus · Floral
Layer 1 · Enthusiast

What Does Butene, homopolymer Smell Like?

Butene homopolymer is typically odorless in its pure form, serving functional rather than olfactory purposes. As a synthetic polymer, it lacks the volatile organic compounds that produce detectable fragrance characteristics. Its molecular structure doesn’t facilitate the release of aromatic compounds that would interact with olfactory receptors.

Layer 2

2D Molecular Structure

Polybutene

SMILES: *-CCCC-* |$star_e;;;;;star_e$,Sg:n:3,4,2,1::ht|

Chemistry, Properties & Perfumer Guide

The Chemistry

Butene homopolymer is a synthetic polymer formed through the polymerization of butene monomers. This hydrocarbon polymer is created via catalytic polymerization processes, typically using Ziegler-Natta or metallocene catalysts. The material properties vary based on the degree of polymerization and branching in the molecular structure. As a polyolefin, it shares chemical similarities with polyethylene and polypropylene.

Physical & Chemical Properties

AppearanceTypically white solid or viscous liquid
Molecular WeightVaries by polymerization degree

Perfumer Guide

Note Position
N/A
Volatility
Non-volatile
Blending
Not applicable
ApplicationTypical %RangeNotes
Industrial Adhesives30-70%Varies by formulationBase polymer component
Coatings20-50%Varies by applicationFilm-forming agent

Classic Accords

Tip: Not applicable for fragrance formulation – primarily an industrial material component.

Alternatives & Comparisons

1
Polyisobutylene CAS 9003-27-4

Similar hydrocarbon polymer with varying physical properties, often used interchangeably in industrial applications where specific polymer characteristics are required.

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 a fragrance material.

RIFM Assessment

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

Sustainability

As a synthetic polymer, butene homopolymer is derived from petrochemical sources. Its environmental impact depends on production methods and end-of-life management. Recent developments focus on improving recycling processes for polyolefin materials like butene homopolymers to reduce environmental footprint.

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References

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

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    Physicochemical Properties

    DTXSID: DTXSID2034831

    Partition & Solubility

    LogP (Octanol-Water) 1.702 dimensionless💻 Computed

    Molecular Descriptors

    Topological Polar Surface Area 0 Ų💻 Computed
    H-Bond Donors 0 count💻 Computed
    H-Bond Acceptors 0 count💻 Computed
    Rotatable Bonds 3 count💻 Computed
    Aromatic Rings 0 count💻 Computed

    Data Sources:

    🔬 EPA Experimental data from U.S. EPA CompTox Chemicals Dashboard & CTX APIs. 📊 OPERA Predicted using EPA's OPERA QSAR models. 💻 Computed Calculated from SMILES using RDKit.

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