1-Benzyl-2-pyrrolidinone
Pharmaceutical Materials 2025-03-02
CAS Number: 5291-77-0
Molecular Formula: C11H13NO
Molecular Weight: 175.227 g/mol
Appearance: Clear, colorless to yellow liquid
Boiling Point: 343.04°C
Density: 1.14 g/cm³
Usage: Used as intermediates in pharmaceuticals, pesticides, printing and dyeing auxiliaries, organic synthesis, surfactants, solvents, etc.
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| Attribute | Details |
|---|---|
| Chemical Name | 1-Benzyl-2-pyrrolidinone |
| Synonyms | N-Benzyl-2-pyrrolidinone; 1-(Phenylmethyl)-2-pyrrolidinone; N-Benzyl-γ-butyrolactam; 1-Benzyl-2-pyrrolidone |
| CAS Number | 1047-14-3 |
| Molecular Formula | C11H13NO |
| Molecular Weight | 175.23 g/mol |
| Appearance | Clear, colorless to slightly yellow liquid |
| Density | 1.077 g/mL at 25 °C |
| Boiling Point | 285-286 °C (lit.) |
| Flash Point | 121 °C |
| Refractive Index | 1.540-1.542 at 20 °C |
| Solubility | Soluble in organic solvents such as ethanol, ether, and chloroform; slightly soluble in water |
| Stability | Stable under normal conditions; incompatible with strong oxidizing agents and acids |
| Chemical Properties | Lactam with a benzyl group attached to the nitrogen atom; reacts as both a nucleophile and an electrophile |
| Applications | Used as a solvent for organic synthesis; also used in the preparation of pharmaceuticals, pesticides, and dyes; acts as a plasticizer and a viscosity modifier in various formulations |
| Safety Information | May cause skin and eye irritation; may be harmful if swallowed or inhaled; refer to the MSDS for detailed safety information and appropriate handling procedures |


