Dipropylene glycol
CAS 110-98-5
EC 203-821-4
Formula C6H14O3
MW 134.17 g/mol
Alcohols & Glycols Personal Care & CosmeticsCoatings, Adhesives, Sealants & ElastomersPharmaceuticals & HealthcarePlastics & Polymers Solvent & CarrierAntioxidant & StabilizerHumectant & MoisturizingPreservation & BiocideUV Protection & Stabilization
Description
Dipropylene glycol (DPG) is a diol-class glycol ether with CAS 110-98-5, also known commercially as DPGF and by synonyms including 2-hydroxypropyl ether and 1,1'-oxydi-2-propanol. It carries no assigned E-code and is classified under EC 203-821-4. The compound is a member of the alcohols and glycols family.
In personal care formulations, DPG functions as a solvent and humectant, drawing moisture to the skin while solubilising active ingredients and fragrance compounds. In coatings and polymer systems, it acts as a heat stabiliser and UV absorber, slowing thermal degradation and photoinduced breakdown of the polymer matrix during processing and service life.
DPG is available in standard industrial and cosmetic-grade forms, with pharmaceutical-grade material meeting Ph.Eur. and USP specifications where required. It falls under REACH regulation and is subject to standard SVHC compliance documentation. The HS code for import and export classification is 2909 44 00.
In personal care formulations, DPG functions as a solvent and humectant, drawing moisture to the skin while solubilising active ingredients and fragrance compounds. In coatings and polymer systems, it acts as a heat stabiliser and UV absorber, slowing thermal degradation and photoinduced breakdown of the polymer matrix during processing and service life.
DPG is available in standard industrial and cosmetic-grade forms, with pharmaceutical-grade material meeting Ph.Eur. and USP specifications where required. It falls under REACH regulation and is subject to standard SVHC compliance documentation. The HS code for import and export classification is 2909 44 00.
Physical Properties
| Melting Point | -40 °C |
| Boiling Point | 233 °C |
| Density | 1.0252 g/cm³ @ Temp: 20 °C |
| Flash Point | 138 °C |
| Color | Colorless,sltly viscous liquid |
| Odor | nearly odorless |
| Refractive Index | 1.44-1.442 |
| Log P | -0.820 |
Trade & Regulatory
| HS Code | 29094400 |
Other Names
1-(2-hydroxypropoxy)propan-2-ol4-oxaheptane-2,6-diol1,1′-oxydipropan-2-ol1,1′-oxybis(2-propanol)DPGDPGF1,1’-oxydi-2-propano
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