| Identification | ||
| Name | 2-Pyrrolidinone | |
| Synonyms | 2-Pyrrolidone; Butyrolactam | |
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| Molecular Structure |
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| Molecular Formula | C4H7NO | |
| Molecular Weight | 85.10 | |
| CAS Registry Number | 616-45-5 | |
| EINECS | 210-483-1 | |
| Properties | ||
| Density | 1.103 | |
| Melting point | 25.5 ºC | |
| Boiling point | 250 ºC | |
| Refractive index | 1.486-1.488 | |
| Flash point | 138 ºC | |
| Water solubility | miscible | |