Dipropylene glycol
CAS 25265-71-8
EC 246-770-3
Formula C6H14O3
MW 134.17 g/mol
Alcohols & Glycols Personal Care & CosmeticsLubricants & MetalworkingPlastics & PolymersPrinting & PackagingFood & Nutrition Solvent & CarrierPlasticizer & SoftenerHumectant & Moisturizing
Description
Dipropylene glycol (DPG) is a colourless, low-volatility glycol ether supplied under trade names including Dowanol DPG, DPG-RF, DPG-FC, ADK DPG-RF, and A 33. Registered under CAS 25265-71-8 and EC 246-770-3, it carries no E-code designation and is not classified as a food additive.
In personal care formulations, DPG functions as a solvent and humectant, solubilising fragrance compounds and reducing water activity to extend product stability. In polymer and plastics processing, it acts as a plasticiser by intercalating between polymer chains to reduce brittleness. It also serves as a coupling solvent in metalworking fluids and printing inks.
DPG is available in standard and fragrance-grade (FC/RF) specifications, with pharmaceutical-grade material conforming to Ph.Eur. and FCC monographs. The substance is registered under REACH and supplied in bulk, IBC, and drum formats. Buyers should confirm grade suitability against their application and regional compliance requirements.
In personal care formulations, DPG functions as a solvent and humectant, solubilising fragrance compounds and reducing water activity to extend product stability. In polymer and plastics processing, it acts as a plasticiser by intercalating between polymer chains to reduce brittleness. It also serves as a coupling solvent in metalworking fluids and printing inks.
DPG is available in standard and fragrance-grade (FC/RF) specifications, with pharmaceutical-grade material conforming to Ph.Eur. and FCC monographs. The substance is registered under REACH and supplied in bulk, IBC, and drum formats. Buyers should confirm grade suitability against their application and regional compliance requirements.
Physical Properties
| Melting Point | -40.150 °C |
| Boiling Point | 231.9 °C @ Press: 760 Torr |
| Density | 1.0252 g/cm³ @ Temp: 20 °C |
| Flash Point | 280 °F |
| Appearance | colourless liquid |
| Color | Clear yellow to orange-red, product may darken during storage |
| Odor | at 100.00?%. slight alcoholic |
| Form | Liquid |
| Water Solubility | MISCIBLE |
| Vapor Pressure | <0.01 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.441(lit.) |
| pH | 6-7 (100g/l, H2O, 20℃) |
| Log P | -0.46 at 20℃ |
Safety & Handling (Learn More)
Danger GHS05 GHS07
H
H302H314H333
P
P260P264P270P280P316P321P330P363P405P501P301+P317P304+P317P304+P340P301+P330+P331P302+P361+P354P305+P354+P338
Trade & Regulatory
| HS Code | 29094919 |
| Storage Class | 10 - Combustible liquids |
| WGK (Germany) | 1 |
Other Names
DPGA 33DPG-RFDPG-FCADK DPG-RFDowanol DPGOxybispropanoloxybis-propano
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