Poly[oxy(methyl-1,2-ethanediyl)], .alpha.-hydro-.omega.-hydroxy-, ether with methyl .beta.-D-glucopyranoside (4:1) (CAS 61849-72-7) — Citrus N/A Note Fragrance Ingredient

Citrus · Floral

Poly[oxy(methyl-1,2-ethanediyl)], .alpha.-hydro-.omega.-hydroxy-, ether with methyl .beta.-D-glucopyranoside (4:1)

CAS 61849-72-7

Origin
synthetic
Note
N/A
IFRA
Generally safe
Data as of: Apr 2026

What Is Poly[oxy(methyl-1,2-ethanediyl)], .alpha.-hydro-.omega.-hydroxy-, ether with methyl .beta.-D-glucopyranoside (4:1)?

This synthetic ingredient is a specialized polymer used primarily in cosmetic formulations and industrial applications. Consumers may encounter it in hair care products and skin moisturizers where it functions as a conditioning agent. While not a traditional fragrance material, it plays a supporting role in product performance by improving texture and delivery of scent components.

Safety Profile

GENERALLY SAFE
Generally safeUse with awarenessProfessional use
Approved for cosmetic use
Non-volatile polymer
CAS
61849-72-7
Formula
Mixture
MW
Variable
Odor Family
Citrus · Floral
Layer 1 · Enthusiast

What Does Poly[oxy(methyl-1,2-ethanediyl)], .alpha.-hydro-.omega.-hydroxy-, ether with methyl .beta.-D-glucopyranoside (4:1) Smell Like?

This polymer is essentially odorless, functioning primarily as a carrier or texturizing agent rather than contributing directly to fragrance profiles. Its molecular structure lacks volatile components that would produce detectable aroma.

Layer 2

2D Molecular Structure

Methyl glucoside propoxylate

SMILES: CO[C@H]1O[C@@H](COCCCO)[C@H](OCCCO)[C@@H](OCCCO)[C@@H]1OCCCO |r,lp:1:2,3:2,6:2,10:2,12:2,16:2,18:2,22:2,24:2,28:2,Sg:n:9,8,7,6::ht,Sg:n:15,14,13,12::ht,Sg:n:21,20,19,18::ht,Sg:n:27,26,25,24::ht|

Chemistry, Properties & Perfumer Guide

The Chemistry

This polymer belongs to the class of polyethylene glycol derivatives modified with glucoside groups. The structure combines hydrophilic polyether chains with sugar moieties, creating amphiphilic properties. Synthesis typically involves controlled polymerization of ethylene oxide followed by grafting with methyl glucoside. The 4:1 ratio indicates the stoichiometry between the polyether backbone and sugar units.

Physical & Chemical Properties

AppearanceClear viscous liquid
SolubilityWater-soluble

Perfumer Guide

Note Position
N/A
Volatility
Non-volatile
Blending
Functional additive
ApplicationTypical %RangeNotes
Hair Care1-3%0.5-5%Conditioning agent
Skin Care0.5-2%0.1-3%Moisturizing matrix

Classic Accords

Tip: Use as a solubilizer for hydrophilic fragrance components in aqueous systems.

Alternatives & Comparisons

1
PEG-40 Hydrogenated Castor Oil CAS 61788-85-0

Offers similar solubilizing properties with additional emollient effects from fatty acid chains.

2
Polysorbate 20 CAS 9005-64-5

More economical surfactant with comparable hydrophilic-lipophilic balance for fragrance solubilization.

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

Not restricted by IFRA as it is not a fragrance material.

RIFM Assessment

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

Sustainability

As a synthetic polymer, this material is produced through controlled chemical processes with minimal environmental impact. Being water-soluble, it poses low bioaccumulation risk. The production can be optimized for atom economy given the well-established ethylene oxide polymerization technology.

Explore Poly[oxy(methyl-1,2-ethanediyl)], .alpha.-hydro-.omega.-hydroxy-, ether with methyl .beta.-D-glucopyranoside (4:1)

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References

  1. Cosmetic Ingredient Review Expert Panel (Year). Safety Assessment of Alkyl PEG Ethers. International Journal of Toxicology.
  2. Personal Care Product Council. International Nomenclature of Cosmetic Ingredients.

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

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Ingredient Data Sheet

CAS 61849-72-7

Physical Properties

Molecular Weight426.5 g/mol🔬 PubChem
LogP (Octanol-Water)-1.8🔬 PubChem
log Kp (skin permeability)-6.58💻 Calculated
SMILESCOC1C(C(C(C(O1)COCCCO)OCCCO)OCCCO)OCCCO🔬 PubChem

Odor & Flavor

Functional Groupsalcoholether💻 RDKit
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.

Physicochemical Properties

DTXSID: DTXSID30977418

Physical Properties

Molecular Weight 426.5 g/mol🔬 PubChem

Partition & Solubility

LogP (Octanol-Water) -0.94 dimensionless💻 Computed

Molecular Descriptors

Topological Polar Surface Area 136.3 Ų💻 Computed
H-Bond Donors 4 count💻 Computed
H-Bond Acceptors 10 count💻 Computed
Rotatable Bonds 18 count💻 Computed
Aromatic Rings 0 count💻 Computed
Molar Refractivity 102.52 cm^3/mol💻 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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