【CAS】540-42-1
Alias: Propionic acid (2-methylpropyl) ester;Propionic acid 2-methylpropyl ester
Molecular formula: C7H14O2 Relative molecular mass: 130.18
Structural formula:
1.Product Property
Colorless to pale yellow liquid. It has the aroma of rum and pineapple. The boiling point is 137 – 138℃, and the freezing point is -71.4℃. It is highly soluble in ethanol and ether, but insoluble in water.
2.
| Parameter | Specification |
| Purity (GC-FID) | ≥98.0% |
| Appearance | Colorless liquid |
| Odor | Fruity, rum-like |
| Refractive Index (20°C) | 1.390 – 1.394 |
| Density (20°C) | 0.860 – 0.870 g/cm³ |
| Acidity (as Propionic Acid) | ≤0.03% |
| Water Content | ≤0.1% |
| Heavy Metals (Pb) | ≤2 ppm |
3.Application scope and Usage
It is commonly used as an edible spice, mainly for preparing rum, strawberry and other fruit-based essences. It can also be used as a solvent for paints and an intermediate in organic synthesis.
4.Package and Storage
Isobutyl propionate is packaged in 25kg aluminum drums or HDPE plastic drums (protected by nitrogen). It is lined with food-grade PE film. It should be stored in a cool and ventilated place (< 25℃), away from fire sources and oxidants. The shelf life is 24 months. After opening, it is recommended to be used within 6 months.
