Diethylene glycol monobutyl ether (CAS 112-34-5) — Sweet None Note Fragrance Ingredient
Diethylene glycol monobutyl ether
CAS 112-34-5
What Is Diethylene glycol monobutyl ether?
Diethylene glycol monobutyl ether is a synthetic solvent commonly found in industrial cleaners, paints, and some personal care products. It helps dissolve other ingredients and adjust product viscosity. While not a traditional fragrance ingredient, its solvent properties can influence fragrance performance in certain formulations. Consumers may encounter it in household products rather than fine fragrances.
Safety Profile
USE WITH AWARENESSWhat Does Diethylene glycol monobutyl ether Smell Like?
Diethylene glycol monobutyl ether has a mild, somewhat sweet odor that is generally considered neutral in fragrance applications. Its primary role is as a solvent rather than an olfactive contributor. In formulations, it may slightly modify the volatility of other ingredients but does not provide distinct top, heart, or base notes.
In Famous Fragrances
Fragrance associations may not reflect actual formulations.
2D Molecular Structure
SMILES: CCCCOCCOCCO
Chemistry, Properties & Perfumer Guide
The Chemistry
Diethylene glycol monobutyl ether is an organic compound belonging to the glycol ether family. It is produced synthetically through the reaction of ethylene oxide with butanol. The molecule features both ether and alcohol functional groups, giving it dual hydrophilic and lipophilic properties that make it an effective solvent.
Physical & Chemical Properties
| Boiling Point | 230-232 °C |
|---|---|
| Density | 0.955 g/cm³ |
| Flash Point | 121 °C |
| Vapor Pressure | 0.01 mmHg at 20°C |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Industrial Products | 5-20% | Up to 50% | Primary solvent function |
| Cleaning Products | 2-10% | Up to 15% | Viscosity adjustment |
Classic Accords
Tip: Use primarily as a solvent rather than fragrance ingredient.
Alternatives & Comparisons
Similar solvent properties with lower odor profile for sensitive applications.
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 traditional fragrance material.
GHS Classification
RIFM Assessment
Not evaluated by RIFM as it is not a fragrance material.
Sustainability
Synthetic production from petroleum-derived feedstocks raises environmental concerns. Efforts to develop bio-based alternatives are ongoing but not yet commercially significant.
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References
- PubChem Compound Summary for Diethylene glycol monobutyl ether PubChem CID
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
Report a data errorIngredient Data Sheet
CAS 112-34-5Physical Properties
| Molecular Weight | 162.23 g/mol🔬 PubChem |
| LogP (Octanol-Water) | 0.6🔬 PubChem |
| Boiling Point | 231.1 °C🔬 EPA CompTox |
| Vapor Pressure | 0.01 mmHg @ 25°C📊 OPERA |
| Flash Point | 77.8 °C🔬 EPA CompTox |
| Involatility Index | 0.0008💻 Calculated |
| log Kp (skin permeability) | -3.264💻 Calculated |
| SMILES | CCCCOCCOCCO🔬 PubChem |
Volatility & Performance
| Fragrance Note | Heart💻 Calculated |
| Volatility Class | Very slow💻 Calculated |
| Persistence Score | 2.4 / 5💻 Calculated |
Odor & Flavor
| Primary Descriptors | citrussweet• leffingwell |
| Functional Groups | alcoholether💻 RDKit |
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: DTXSID8021519
Physical Properties
| Molecular Weight | 162.229 g/mol🔬 EPA CompTox |
| Density | 0.952 g/cm^3🔬 EPA CTX |
| Boiling Point | 230.199 °C🔬 EPA CTX |
| Melting Point | -68.025 °C🔬 EPA CTX |
| Flash Point | 88.836 °C🔬 EPA CTX |
| Refractive Index | 1.43 Dimensionless📊 OPERA |
| Molar Volume | 170.82 cm^3/mol📊 OPERA |
Partition & Solubility
| LogP (Octanol-Water) | 0.575 Log10 unitless🔬 EPA CTX |
| LogD (pH 5.5) | 0.554 Log10 unitless📊 OPERA |
| LogD (pH 7.4) | 0.549 Log10 unitless📊 OPERA |
| LogKoa (Octanol-Air) | 7.22 Log10 unitless📊 OPERA |
| Water Solubility | 6.169 mol/L🔬 EPA CTX |
| Henry's Law Constant | 0 atm-m3/mole🔬 EPA CTX |
Transport Properties
| Vapor Pressure | 4.916 mmHg🔬 EPA CTX |
| Viscosity | 5.779 cP📊 OPERA |
| Surface Tension | 33.279 dyn/cm📊 OPERA |
| Thermal Conductivity | 167.171 mW/(m*K)📊 OPERA |
Molecular Descriptors
| Topological Polar Surface Area | 38.69 Ų💻 Computed |
| H-Bond Donors | 1 count💻 Computed |
| H-Bond Acceptors | 3 count💻 Computed |
| Rotatable Bonds | 8 count💻 Computed |
| Aromatic Rings | 0 count💻 Computed |
| Molar Refractivity | 44.137 cm^3/mol📊 OPERA |
| Polarizability | 17.497 Å^3📊 OPERA |
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.
