Molekula
1-Methyl-2-pyrrolidinone 99+%
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
1-Methyl-2-pyrrolidinone (NMP) is a highly polar aprotic solvent widely used in industrial processes, pharmaceutical manufacturing, and battery production for its excellent solvency and stability. It dissolves a broad range of polar and nonpolar compounds, making it ideal for cleaning, extraction, and polymerization applications. This product is 1-Methyl-2-pyrrolidinone with a purity of 99%+, CAS number 872-50-4, molecular formula C5H9NO (also written in condensed form as C4H6ONCH3), and molecular weight 99.13 g/mol. It is stored at ambient conditions and carries a "Danger" signal word due to its hazardous nature. Molekula supplies 1-Methyl-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.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 91 °C |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Clear liquid |
| Odour | Mild amine odor |
| Melting Point | -24.4 °C |
| Boiling Point | 202 °C |
| Density | 1.03 (relative, water = 1) |
| Vapour Pressure | 39 Pa at 25 °C |
| Refractive Index | 1.4684 |
| log P (octanol/water) | -0.38 |
Source: PubChem CID 13387 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90028098 |
| CAS Number | 872-50-4 |
| IUPAC Name | 1-methylpyrrolidin-2-one |
| EC Number | 212-828-1 |
| Molecular Formula | C4H6ONCH3 |
| Molecular Weight | 99.13 |
| Exact Mass | 99.0684 |
| SMILES | CN1CCCC1=O |
| InChIKey | SECXISVLQFMRJM-UHFFFAOYSA-N |
| InChI | InChI=1S/C5H9NO/c1-6-4-2-3-5(6)7/h2-4H2,1H3 |
| PubChem CID | 13387 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29339997 |
| Tariff Code | 2933790090 |
Safety & GHS
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
Hazard statements
- H227 Combustible liquid
- H303 May be harmful if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H360D May harm the unborn child
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, 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
No alternate names recorded for this product.
Frequently asked questions
What is 1-Methyl-2-pyrrolidinone (NMP) primarily used for?
NMP is widely used as a polar aprotic solvent in industrial applications, including battery manufacturing (e.g., lithium-ion), electronics, and as a processing aid in adhesives, coatings, and pharmaceutical formulations.
What is the chemical formula and molecular weight of 1-Methyl-2-pyrrolidinone?
The chemical formula is C₅H₉NO (also written in condensed form as C₄H₆ONCH₃), and the molecular weight is 99.13 g/mol.
How should 1-Methyl-2-pyrrolidinone be stored?
Store NMP in a tightly sealed container at ambient temperature, away from ignition sources, strong oxidizers, and incompatible materials like strong acids or bases.
What purity grades of 1-Methyl-2-pyrrolidinone does Molekula supply?
Molekula supplies 1-Methyl-2-pyrrolidinone at ≥99% purity (as specified). Higher or specialty grades may be available upon request.
Can Molekula supply 1-Methyl-2-pyrrolidinone in bulk quantities?
Yes, Molekula can provide NMP in bulk quantities (e.g., drums, IBCs, or custom packaging) for industrial and commercial customers—please contact us for pricing and logistics details.
What documentation is provided with an order of 1-Methyl-2-pyrrolidinone?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS/SDS), and batch-specific documentation for traceability. Additional certifications (e.g., REACH, FDA compliance) may be provided upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.