1-Methyl-2-pyrrolidinone
1-Methyl-2-pyrrolidinone (CAS 872-50-4), molecular formula C5H9NO, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
- IUPAC
- 1-Methyl-2-pyrrolidone,N-Methyl-2-pyrrolidone,NMP

| Molecular weight | 99.13 |
|---|---|
| Empirical formula | C5H9NO |
| Assay | ≥99.0% (GC) |
| Grade | SAJ first grade |
| Boiling point | 202 °C(lit.)81-82 °C/10 mmHg(lit.) |
| Density | 1.028 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.47(lit.)n20/D 1.470 |
| Melting point | −24 °C(lit.) |
| Vapour pressure | 0.29 mmHg (20 °C)0.99 mmHg (40 °C) |
| Vapour density | 3.4 (vs air) |
| Autoignition temp | 518 °F |
| Impurities tested | ≤0.1% water |


Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H360D
Precautionary statements
- P201Obtain special instructions before use
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
- P308IF exposed or concerned
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 91 °C / 195.8 °F |
| Transport (UN / ADR) | UN 1993 / PGIII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | T |
| Risk statements (R) | 61-36/37/38 |
| Safety statements (S) | 53-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Expl Lim | 9.5 % |
|---|---|
| Availability | available only in Japan |
Documentation
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 1-Methyl-2-pyrrolidinone?
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1-Methyl-2-pyrrolidinone (CAS 872-50-4), molecular formula C5H9NO, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to USP, BP and EP standards.
What grades of 1-Methyl-2-pyrrolidinone does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-Methyl-2-pyrrolidinone in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of 1-Methyl-2-pyrrolidinone?
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1-Methyl-2-pyrrolidinone has CAS number 872-50-4 and molecular formula C5H9NO. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for 1-Methyl-2-pyrrolidinone?
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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
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Yes. Every batch of 1-Methyl-2-pyrrolidinone ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should 1-Methyl-2-pyrrolidinone be stored?
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Store 1-Methyl-2-pyrrolidinone in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is 1-Methyl-2-pyrrolidinone used for?
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1-Methyl-2-pyrrolidinone is used in chemical synthesis applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for 1-Methyl-2-pyrrolidinone?
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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
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