Propyl Gallate
Propyl 3,4,5-Trihydroxybenzoate
- CAS
- 121-79-9
- EC
- 204-498-2
- Food Code
- E310
- Sectors
- Food & Nutrition, Personal Care & Cosmetics
Propyl Gallate (CAS 121-79-9) is an ester-type antioxidant that appears as a white to light beige crystalline powder, remains stable in fats and oils, and shows strong free radical scavenging activity; it is used in food, cosmetic and pharmaceutical applications to slow the oxidation of oils and fats.
Typical Properties
| Molecular formula | C10H12O5 |
|---|---|
| Molecular weight | 212.2 g/mol |
| Appearance | white to light beige crystalline powder |
| Form | powder |
| Color | White to light beige |
| Odor | bland |
| Melting point | 130 °C |
| Density | 1.210 |
| Water solubility | 0.35 g/100 mL (25 °C) |
| Flash point | 187°C |
| GHS signal word | Danger · Corrosive, Irritant / harmful, Health hazard, Environmental hazard |
| HS code | 29182950 |
| Grades available | Food Grade, Cosmetic Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Propyl Gallate
Applications
Widely used in food, cosmetics, and pharmaceuticals as an antioxidant to prevent oxidation of oils and fats. It stabilizes vitamin formulations and extends the shelf life of emulsions, edible oils, and meat products. Industrial uses include lubricants, rubber, and biodiesel stabilization.
Safety & Risks
Low toxicity; may cause mild skin or eye irritation. Avoid exposure to light and heat to maintain antioxidant potency.
Packaging
Supplied in 25 kg fiber drums or aluminum foil bags. Store cool, dry, and sealed, away from oxidizing agents and moisture.