Dipropylene glycol monomethyl ether (CAS 34590-94-8) — Sweet Carrier Note Fragrance Ingredient
Dipropylene glycol monomethyl ether
CAS 34590-94-8
What Is Dipropylene glycol monomethyl ether?
Dipropylene glycol monomethyl ether (DPM) is a synthetic solvent commonly found in industrial cleaners, paints, and some personal care products. It helps dissolve other ingredients evenly. While not a fragrance itself, it’s important in perfumery as a carrier for aroma chemicals, ensuring consistent scent delivery.
Safety Profile
USE WITH AWARENESSWhat Does Dipropylene glycol monomethyl ether Smell Like?
DPM is nearly odorless with a faint, slightly sweet chemical character. In formulations, it acts as a blank canvas, contributing no distinct olfactory profile but providing stability. Its neutral nature makes it ideal for carrying delicate top notes without interference.
In Famous Fragrances
Fragrance associations may not reflect actual formulations.
Chemistry, Properties & Perfumer Guide
The Chemistry
Dipropylene glycol monomethyl ether belongs to the glycol ether family, synthesized through alkoxylation of propylene oxide followed by methylation. These solvents are prized for their balanced hydrophilicity and lipophilicity. DPM’s structure allows it to solubilize both polar and non-polar compounds.
Physical & Chemical Properties
| Boiling Point | 190-210°C |
|---|---|
| Density | 0.95 g/cm³ |
| Flash Point | 93°C |
| Vapor Pressure | 0.1 mmHg at 20°C |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Functional Solvent | 5-20% | Up to 50% | Base for fragrance oils |
| Household Products | 3-10% | 1-15% | Cleaning formulations |
Classic Accords
Tip: Use as a neutral diluent for concentrated fragrance oils.
Alternatives & Comparisons
More hydrophilic alternative with similar solvent properties but higher skin absorption.
Higher boiling point alternative when more thermal stability is required.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
Not restricted by IFRA.
GHS Classification
RIFM Assessment
Not currently assessed by RIFM as it’s primarily a solvent rather than fragrance material.
Sustainability
Synthesized from petrochemical feedstocks. While not biodegradable, it has low ecotoxicity. Proper disposal is required to prevent environmental accumulation.
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References
- PubChem Compound Summary for CID 8079 Dipropylene glycol
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
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