Glycols & Polyols Available — Bulk Only

Dipropylene Glycol (DPG)

DPG
CAS 25265-71-8 · Formula C12H28O6 · MW 268.35 g/mol

A low-odor, low-toxicity glycol used both as a reactive intermediate for resins and as a versatile carrier and coupling solvent. It is used as a raw material for polyester and alkyd resins and plasticizers, as a solvent and coupling agent, in cutting oils and hydraulic brake fluids, and as a fragrance carrier.

Safety Data Sheet
HS Code
2909.49
At a Glance
Material Family
Glycols & Polyols
Record Type
Pure compound
Primary Role
Solvency · Viscosity Modification
Functional Roles
Solvency Viscosity Modification Moisture Control Plasticizing
INCI Name
DIPROPYLENE GLYCOL
CosIng Functions
FRAGRANCEPERFUMINGSOLVENTVISCOSITY CONTROLLING
Industries Served
Agriculture Beauty & Personal Care Oil & Gas
Applications & Use Cases
  • ▸ Resins: Raw material for polyester and alkyd resins
  • ▸ Plasticizers: Intermediate for plasticizer production
  • ▸ Solvent & coupling: Coupling solvent and humectant in formulations
  • ▸ Functional fluids: Component of cutting oils and hydraulic brake fluids
  • ▸ Fragrance carrier: Diluent and carrier for fragrance compounds
Physical Properties
Physical Description
Thick odorless, colorless liquid. Sinks and mixes with water
Appearance
Colorless liquid
Odor
Odorless
Boiling Point
444 to 232 °C at 760 mmHg
Melting Point
-40 °C
Flash Point
138 °C (138 °C)
Solubility
≥ 100 mg/mL at 24 °C
Density
1.023 at 20 °C
Vapor Density
4.63
Vapor Pressure
1 mmHg at 74 °C; 760 mmHg at 232 °C
LogP
log Kow = -1.07
Autoignition Temperature
371 degree C /Dipropylene glycol, mixed isomers and dominant isomer (DPG)/
Viscosity
1.07 cP at 20 °C
Heat of Vaporization
53.64 kJ/mol
Refractive Index
Index of refraction = 1.439 at 25 °C
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2909 . 49
Chapter 29
Organic chemicals
Heading 29.09
Internationally harmonized (WCO HS)
Subheading 2909.49
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
25265-71-8
Molecular Formula
C12H28O6
Molecular Weight
268.35 g/mol
IUPAC Name
2-(1-hydroxypropan-2-yloxy)propan-1-ol;1-(2-hydroxypropoxy)propan-2-ol
INCI Name
DIPROPYLENE GLYCOL
PubChem CID
134692469
InChI Key
BPRJQFIHEGORJE-UHFFFAOYSA-N
Synonyms & Trade Names
Oxybispropanol Dipropylenglykol 4-Oxa-2,6-heptandiol Abelia seaweed refining mask Abelia green tea energy mask Abelia cucumber soothing mask Abelia lemon brightening mask Abelia collagen amplifying mask Professional Level Brighting Pen Abelia pomegranate bounce up mask Abelia royal jelly nutrition mask Abelia aloe vera moisturizing mask Dipropylene Glycol Dipropyleneglycol Propanol, oxybis- Dowanol DPG
Full Description

Dipropylene glycol (CAS 25265-71-8), or DPG, is a low-toxicity diol and ether-alcohol. It is used as a raw material for polyester and alkyd resins and plasticizers, as a solvent and coupling agent, in cutting oils and hydraulic brake fluids, and as a fragrance carrier.

Frequently Asked Questions

What is dipropylene glycol (DPG) used for?

DPG is a diol/ether-alcohol used as a raw material for polyester and alkyd resins and plasticizers, as a coupling solvent and humectant, in cutting oils and hydraulic brake fluids, and as a diluent and carrier for fragrance compounds.

Is dipropylene glycol an alcohol?

DPG is a diol — a di-alcohol with two hydroxyl groups — and an ether-alcohol (CAS 25265-71-8, C6H14O3 for the monomer mixture of isomers). It is chemically classed among the glycols, not a beverage-type alcohol.

What is the difference between dipropylene glycol and propylene glycol?

Propylene glycol is the monomer (C3H8O2); dipropylene glycol is the dimer, a higher-boiling diol formed from two propylene glycol units (CAS 25265-71-8). DPG has lower volatility and is favored as a fragrance carrier. Confirm CAS on the CoA.

What grades of dipropylene glycol are available?

DPG is commonly offered in fragrance-grade (low-odor, LO) and regular/industrial grades for resins and functional fluids. Available grades depend on supply; specify your application on a bulk RFQ and we will confirm the matching grade with CoA and SDS.

How is bulk dipropylene glycol packaged and quoted?

DPG ships in drums, totes, or bulk to fragrance, resin, and functional-fluid buyers. Pricing varies with volume, grade, and destination; submit a bulk RFQ with your quantity for a current quote, CoA, and SDS.

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Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.

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