n-Methylpyrrolidone
| Formula: | C₅H₉NO |
| CAS Number: | 872-50-4 |
| EC Number (EINECS): | 212-828-1 |
| HS Code: | 29329900 |
| UN Number: | 3264 (Corrosive liquid, acidic, organic, n.o.s.) |
| IUPAC Name: | 1-Methyl-2-pyrrolidone |
| Also Known As: | NMP; 1-Methyl-2-pyrrolidone; N-Methyl-2-pyrrolidone |
| Molecular Weight, g/mol: | 99.13 |
Typical Specifications
| Appearance: | Colorless to slightly yellow liquid |
| Odor: | Amine-like, characteristic |
| Melting Point, °C: | -24 |
| Boiling Point, °C: | 202 |
| Density, g/cm³ (at 20°C): | 1.03 |
| Flash Point, °C: | 91 (closed cup) |
| Refractive Index (20°C): | 1.474 |
| Solubility: | Miscible with water, alcohols, ketones, esters |
| Vapor Pressure (at 20°C): | 0.3 mmHg |
| Purity, %: | ≥99.0 |
| Grades Available: | Technical, Industrial, High Purity |
| Packaging: | 200kg drums, 1000kg IBC, bulk ISO tanks |
Applications / Uses
Primary Applications
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Solvent for polymers, resins, and paints
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Key ingredient in electrochemical and battery formulations
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Used in pharmaceutical synthesis
Secondary Applications
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Used in petrochemical extraction and cleaning applications
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Intermediate for agrochemical formulations
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Electronics and coatings industry
End Industries Served: Pharmaceuticals, Polymers, Coatings, Electronics, Agrochemicals, Petrochemical
Safety & Handling Information
Hazard Class (GHS): Reproductive Toxicity (Category 1B), Skin Irritation (Category 2), Eye Irritation (Category 2)
Hazard Statements (H-Codes):
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H360: May damage fertility or the unborn child
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H315: Causes skin irritation
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H319: Causes serious eye irritation
Precautionary Statements (P-Codes):
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P280: Wear protective gloves/eye protection
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P201: Obtain special instructions before use
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P305 + P351 + P338: IF IN EYES – rinse cautiously with water, remove contact lenses if present
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P308 + P313: IF exposed or concerned – get medical advice/attention
Storage Conditions
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Store in a cool, dry, well-ventilated area
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Keep container tightly closed and away from incompatible materials
Transport Information
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ADR/RID: Class 8, UN3264, PG II
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IMDG: Class 8, UN3264
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IATA: Class 8, UN3264