2-Pyrrolidinone
SIAL/83300 - purum, ≥98.0% (GC)
Synonym: 2-Pyrrolidone; Butyrolactam
CAS Number: 616-45-5
Empirical Formula (Hill Notation): C4H7NO
Molecular Weight: 85.10
EC Number: 210-483-1
MDL Number: MFCD00005270
Linear Formula: C4H7NO
Product Type: Chemical
| assay | ≥98.0% (GC) |
| bp | 245 °C (lit.) |
| density | 1.12 g/mL at 25 °C (lit.) |
| form | solid |
| grade | purum |
| InChI | 1S/C4H7NO/c6-4-2-1-3-5-4/ |
| InChI key | HNJBEVLQSNELDL-UHFFFAOYSA |
| mp | 23-25 °C (lit.) |
| Quality Level | 200 ![]() |
| refractive index | n |
| SMILES string | O=C1CCCN1 |
| solubility | H2O: miscible (completely) |
| vapor density | 2.9 (vs air) |
| Application: | • 2-Pyrrolidinone is used in the synthesis of N-vinylpyrrolidone, from which polyvinylpyrrolidone (PVP) is obtained. • It can be used as a ligand in the preparation of one-dimensional coordination polymers and mixed transition metal-lanthanide complexes. • 1,2-amino alcohols can be reacted with carbon dioxide in the presence of 2-pyrrolidinone electrogenerated base to synthesize various oxazolidin-2-ones (Evans-type auxiliaries). • It is a key starting material in the synthesis of (±)-tetraponerine T4. |
| Symbol | ![]() GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H319 - H360D |
| Precautionary statements | P201 - P202 - P264 - P280 - P305 + P351 + P338 - P308 + P313 |
| Hazard Codes | Xi |
| Risk Statements | 36 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | 235.4 °F - closed cup |
| Flash Point(C) | 113 °C - closed cup |
| Purity | ≥98.0% (GC) |
| bp | 245 °C (lit.) |
| mp | 23-25 °C (lit.) |
| Density | 1.12 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352100 |



