3-Ethylpyridine CAS Number: 536-78-7
Pharmaceutical Materials 2025-03-02
CAS Number: 536-78-7
Molecular Formula: C7H9N
Molecular Weight: 107.153 g/mol
Appearance: Colorless to brown liquid
Melting Point: -77°C
Boiling Point: 165.8°C
Density: 0.954 g/mL
Usage: Utilized as an intermediate in organic synthesis.
3-Ethylpyridine, with the CAS number 536-78-7, is an organic compound characterized by its molecular formula C₇H₉N and a molecular weight of 107.15 g/mol. It appears as a colorless to brown liquid, possessing a distinct odor reminiscent of tobacco, oakmoss, and leather. This compound exhibits good solubility in water, ethanol, ether, and especially acetone. Its physical properties include a melting point of -77°C, a boiling point ranging from 163°C to 166°C, a density of 0.954 g/mL at 25°C, and a refractive index of 1.502. Additionally, it has a flash point of 49°C, indicating its flammability.
| Property | Description |
|---|---|
| Physical Properties | |
| Appearance | Colorless to brown liquid |
| Odor | Characteristic (tobacco, oakmoss, leather) |
| Melting Point | -77°C |
| Boiling Point | 163-166°C |
| Density | 0.954 g/mL at 25°C |
| Refractive Index | 1.502 |
| Flash Point | 49°C |
| Solubility | Soluble in water, ethanol, ether; freely soluble in acetone |
| Molecular Formula | C₇H₉N |
| Molecular Weight | 107.15 g/mol |
| Stability | Stable under normal conditions; incompatible with strong oxidizers and acids |
| Applications | Organic synthesis intermediate; flavor additive in food industry |
| Hazard Classification | Xi (irritant); may cause eye, skin, and respiratory irritation; flammable |
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