Dipropylene Glycol (DPG)
| Formula: | C₆H₁₄O₃ |
| CAS Number: | 25265-71-8 |
| EC Number (EINECS): | 246-770-3 |
| HS Code: | 29094900 |
| UN Number: | Not regulated as hazardous for transport |
| IUPAC Name: | 2-(2-Hydroxypropoxy)-1-propanol |
| Also Known As: | DPG; Oxydipropanol; Bis(2-hydroxypropyl) ether |
| Molecular Weight, g/mol: | 134.18 |
Typical Specifications
| Appearance: | Clear, colorless, odorless liquid |
| Odor: | Practically odorless |
| Melting Point, °C: | -65 |
| Boiling Point, °C: | 232 |
| Density, g/cm³ (at 20°C): | 1.023 |
| Flash Point, °C: | 138 (closed cup) |
| Refractive Index (20°C): | 1.448–1.452 |
| Solubility: | Miscible with water, alcohols, esters, ketones |
| Purity, %: | ≥99.5 |
| Grades Available: | Industrial, Technical, Fragrance/Perfume Grade |
| Packaging: | 215kg drums, 1000kg IBC tanks, bulk ISO tanks |
Applications / Uses
Primary Applications
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Solvent and carrier in fragrances, perfumes, and cosmetics
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Humectant in personal care products and toiletries
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Used in production of plasticizers and unsaturated polyester resins
Secondary Applications
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Solvent in hydraulic fluids and brake fluids
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Intermediate in polyurethane and alkyd resin manufacturing
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Ingredient in household and industrial cleaners
End Industries Served: Fragrance, Cosmetics, Personal Care, Plastics, Resins, Household Chemicals, Industrial Fluids
Safety & Handling Information
Hazard Class (GHS): Not classified as hazardous under most regulations
Hazard Statements (H-Codes):
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H319: Causes serious eye irritation (dust or vapor in high concentration)
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Generally considered of low toxicity and safe for cosmetic use
Precautionary Statements (P-Codes):
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P280: Wear protective gloves/eye protection
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P261: Avoid breathing mist/vapor
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P305 + P351 + P338: IF IN EYES – rinse cautiously with water
Storage Conditions
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Store in tightly closed containers in a dry, ventilated place
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Protect from heat and direct sunlight
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Hygroscopic – avoid moisture contamination
Transport Information
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ADR/RID: Not classified as dangerous goods
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IMDG: Not classified as dangerous goods
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IATA: Not classified as dangerous goods
Regulatory Information
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REACH Status (EU): Registered
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IFRA Status: Approved for fragrance and cosmetic use (subject to category restrictions)
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FDA Approval: GRAS (Generally Recognized as Safe) for certain food contact and cosmetic uses
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ISO Certification: Available on request (ISO 9001 for manufacturing grade)
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Country Standards: Complies with USP/EP/JP for pharma/cosmetic grades