5-Ethyl-2-methyl-pyridine CAS Number: 104-90-5
Pharmaceutical Materials 2025-03-02
CAS Number: 104-90-5
Molecular Formula: C8H11N
Molecular Weight: 121.18 g/mol
Appearance: Colorless oil-like liquid
Melting Point: -70.9 °C Boiling Point: 175.96 °C
Usage: Mainly used in the preparation of nicotinic acid, nicotinamide, isoniazid, nikethamide, etc.
5-Ethyl-2-methyl-pyridine, also known as 2-methyl-5-ethyl-pyridine, is an organic compound with the CAS number 104-90-5. It is primarily used in the production of nicotinic acid, nicotinamide, isoniazid, and nikethamide. Additionally, it finds applications in the synthesis of food and feed additives. This compound is a colorless liquid with a distinct odor and exhibits specific physical and chemical properties. However, it is important to handle 5-ethyl-2-methyl-pyridine with caution due to its potential hazards.
| Property | Value |
|---|---|
| Chemical Name | 5-Ethyl-2-methyl-pyridine |
| CAS Number | 104-90-5 |
| Molecular Formula | C8H11N |
| Molecular Weight | 121.18 |
| Physical State | Liquid |
| Melting Point (°C) | -70.9 |
| Boiling Point (°C) | 175.96-178 |
| Density (g/cm³ at 25°C) | 0.919-0.92 |
| Flash Point (°C) | 66.11 |
| Refractive Index | 1.497 |
| Solubility | Insoluble in water, soluble in ethanol, ether, benzene, and dilute acids |
| Chemical Property | Pyridine derivative, aromatic compound |
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