Molekula
1-Ethyl-2-pyrrolidinone
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
1-Ethyl-2-pyrrolidinone (NEP) is a polar aprotic solvent widely used in industrial processes, including battery manufacturing, pharmaceutical synthesis, and as a reaction medium for polymerizations. It is also used as a solvent in paint formulations, in petroleum production and refining, and as a chemical reaction regulator. It dissolves a broad range of polar and nonpolar compounds, making it valuable in cleaning applications and as a processing aid in lithium-ion battery production. This chemical has a CAS number of 2687-91-4, with the molecular formula C6H11NO and a molecular weight of 113.16. It is stored at ambient conditions but requires careful handling due to its hazardous nature, marked by a "Danger" signal word. Molekula supplies 1-Ethyl-2-pyrrolidinone from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Colourless to yellow liquid |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 91 °C |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Vapour Pressure | 0.1 mmHg |
Source: PubChem CID 17595 (Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 90035137 |
| CAS Number | 2687-91-4 |
| IUPAC Name | 1-ethylpyrrolidin-2-one |
| EC Number | 220-250-6 |
| Molecular Formula | C6H11NO |
| Molecular Weight | 113.16 |
| Exact Mass | 113.0841 |
| SMILES | CCN1CCCC1=O |
| InChIKey | ZFPGARUNNKGOBB-UHFFFAOYSA-N |
| InChI | InChI=1S/C6H11NO/c1-2-7-5-3-4-6(7)8/h2-5H2,1H3 |
| PubChem CID | 17595 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2933.99.9701 |
| Tariff Code | 2933790090 |
Safety & GHS
-
Corrosive
GHS05
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
Hazard statements
- H302 Harmful if swallowed
- H318 Causes serious eye damage
- H331 Toxic if inhaled
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P304+312 IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 1-Ethyl-2-pyrrolidone
- 1-Ethylpyrrolidin-2-one
- 2-Pyrrolidinone, 1-ethyl-
- Agsol Ex 2
- Ethyl pyrrolidone
- n-ethyl-2-pyrrolidinone
- N-Ethyl-2-pyrrolidone
- N-Ethylpyrrolidinone
- N-Ethylpyrrolidone
- Pyrrolidinone, 1-ethyl-
Frequently asked questions
What is 1-Ethyl-2-pyrrolidinone (NEP) commonly used for?
1-Ethyl-2-pyrrolidinone is primarily used as a high-boiling polar solvent in applications like lithium battery electrolytes, pharmaceutical intermediates, and as a coupling agent in polymer synthesis.
What is the molecular formula and molecular weight of 1-Ethyl-2-pyrrolidinone?
The molecular formula is **C₆H₁₁NO** and the molecular weight is **113.16 g/mol**.
What safety classification does 1-Ethyl-2-pyrrolidinone have?
It carries the signal word 'Danger' due to its hazardous properties: it is harmful if swallowed (H302), causes serious eye damage (H318) and is toxic if inhaled (H331).
How should 1-Ethyl-2-pyrrolidinone be stored?
Store in a tightly sealed container at **ambient temperature**, away from ignition sources and incompatible materials.
Does Molekula offer bulk quantities of 1-Ethyl-2-pyrrolidinone?
Yes, Molekula can supply **1-Ethyl-2-pyrrolidinone in bulk**—please contact us for pricing and availability.
What documentation is provided with an order of 1-Ethyl-2-pyrrolidinone?
Each order includes a **Certificate of Analysis (CoA)**, Safety Data Sheet (SDS), and a **Material Safety Information (MSI) sheet** for compliance and handling.
Ready to order or need a custom pack?
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