1-Ethyl-2-pyrrolidinone
CAS: 2687-91-4
Category: Heterocyclic Aromatic Compound
| Purity | Industrial Grade ≥99.0%; High Purity Grade ≥99.5%; Electronic Grade ≥99.5% |
| Molecular Formula | C6H11NO |
| Molecular Weight | 113.16 |
| Appearance | Colorless transparent liquid with a mild amine-like odor; hygroscopic polar aprotic solvent with high boiling point and excellent solvency. |
| Packaging | 200 kg/galvanized steel drum, 200 kg/HDPE drum, 25 kg plastic drum, 1000 kg IBC tank, or customized packaging according to customer requirements |
| Testing Indicators | Appearance — Visual inspection; Purity — Gas chromatography (GC-FID); Water content — Karl Fischer titration (ASTM E203); Color — APHA color measurement (ASTM D1209); Density — Digital density meter or hydrometer (ASTM D4052); Refractive index — Abbe refractometer (ASTM D1218); Identification — FTIR spectroscopy and NMR analysis; Acidity/alkalinity — Acid-base titration; Residue on evaporation — Gravimetric method; Metal impurities — ICP-MS analysis for high-purity grades. |
| Storage Notes | Store in a cool, dry, and well-ventilated area away from direct sunlight and heat sources. Keep containers tightly closed to prevent moisture absorption and contamination. Avoid contact with strong oxidizing agents, strong acids, and strong bases. Use suitable protective equipment during handling. |
| Lead Time | 10 days |
1-Ethyl-2-pyrrolidinone (NEP) is a high-performance polar aprotic solvent used as an environmentally preferable alternative to N-methyl-2-pyrrolidinone (NMP) in industrial applications. It is widely applied in coatings, adhesives, inks, polymer processing, electronic materials, lithium battery manufacturing, pharmaceutical synthesis, and agrochemical formulations. It provides excellent solvency for resins, polymers, and organic compounds and is used as a reaction and extraction solvent in chemical processes.