CAS 79-20-9 Methyl acetate (MeOAc) / Acetic Acid Methyl Ester is a colorless, volatile liquid with a pleasant sweet, fruity odor similar to apples or strawberries. As the simplest ester of acetic acid, it has a light molecular weight, low density, and a low freezing point.
| CAS No.: | 79-20-9 |
|---|---|
| EC No.: | 201-185-2 |
| Linear Formula: | CH₃COOCH₃ |
| Molecular Weight: | 74.08 |
| Appearance: | Transparent Liquid |
| Odor: | Characteristic mild, fruity odor. |
| Melting Point: | -98 °C (lit.) |
| Boiling point: | 57-58 °C (lit.) |
| Density: | 0.934 g/mL at 25 °C |
| Solubility: | Moderately soluble in water; miscible with most organic solvents like ethanol, ether. |
| Flash Point: | 3.2 °F |
| Purity: | Highly flammable liquid and vapor. |
| Chemical Structure: |  |
methyl acetate (CAS 79 20 9) uses in industry
- Solvent Applications: Primary component in nitrocellulose lacquers, acrylic coatings, and resin systems
- Chemical Synthesis: Intermediate in pharmaceutical production (e.g., sulfonamides, vitamins)
- Consumer Goods: Flavoring agent (FEMA GRAS 4795) in food products ≤1,000 ppm
- Specialized Uses: Lithium extraction from brine solutions, cellulose acetate processing
Safety Information:
- Keep container tightly closed and store in a well-ventilated area.
- Keep away from fire and do not smoke.
- If contact with eyes, immediately flush with plenty of water and seek medical advice.
- Wear appropriate protective clothing, gloves, and eye/face protection.
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