Solvents - Oxygenated Available — Bulk Only

N-Methyl-2-Pyrrolidone (NMP)

CAS 872-50-4 · Formula C5H9NO · MW 99.13 g/mol

A high-boiling polar aprotic solvent for resins, coatings, and electronics processing. It is widely used as a solvent for resins, polymers, pigments, and coatings, in paint stripping, and in microelectronics and semiconductor processing.

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HS Code
2933.79
At a Glance
Material Family
Solvents - Oxygenated
Record Type
Pure compound
Primary Role
Solvency · Cleaning / Degreasing
Functional Roles
METHYL PYRROLIDONE
SOLVENT
Applications & Use Cases
  • Resin and polymer solvent: Dissolves resins, polymers, pigments, and coatings.
  • Paint stripping: Used as a solvent in paint and coating removers.
  • Microelectronics: Solvent in semiconductor and microelectronics manufacturing.
  • Petrochemical extraction: Recovers aromatics (BTX) and butadiene and removes acid gases.
Physical Properties
Melting Point
-23 °C
Boiling Point
202 °C at 760 mmHg
Density
1.03 at 25 °C
Solubility
≥ 100 mg/mL at 20 °C
Vapor Pressure
0.34
Flash Point
96 °C
pH
pH = 7.7-8
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2933 . 79
Chapter 29
Organic chemicals
Heading 29.33
Internationally harmonized (WCO HS)
Subheading 2933.79
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
872-50-4
Molecular Formula
C5H9NO
Molecular Weight
99.13 g/mol
IUPAC Name
1-methylpyrrolidin-2-one
INCI Name
METHYL PYRROLIDONE
PubChem CID
InChI Key
SECXISVLQFMRJM-UHFFFAOYSA-N
Synonyms & Trade Names
1-METHYL-2-PYRROLIDINONE N-Methyl-2-pyrrolidone N-Methylpyrrolidone N-Methyl-2-pyrrolidinone Methylpyrrolidone 1-Methyl-2-pyrrolidone Methyl pyrrolidone 1-Methylpyrrolidone N-Methylpyrrolidinone 1-Methylpyrrolidinone n-methyl-pyrrolidone 1-Methyl-5-pyrrolidinone 2-Pyrrolidinone, 1-methyl- 1-Methylazacyclopentan-2-one N-Methyl-gamma-butyrolactam Agsolex 1 N-Methyl-alpha-pyrrolidone Microposit 2001
Full Description

N-Methyl-2-pyrrolidone (NMP, CAS 872-50-4) is a high-boiling polar aprotic lactam solvent. It is widely used as a solvent for resins, polymers, pigments, and coatings, in paint stripping, and in microelectronics and semiconductor processing. It also serves as an extraction solvent in petrochemical processing, including aromatics and butadiene recovery and acid-gas removal.

Frequently Asked Questions

What is Micropure EG-2?

Micropure EG-2 is a grade of N-methyl-2-pyrrolidone (NMP, CAS 872-50-4, C5H9NO), a high-boiling polar aprotic lactam solvent. It is supplied as a high-purity solvent for resins, polymers, pigments, coatings, and electronics processing.

What is N-methyl-2-pyrrolidone used for?

NMP is used as a solvent for resins, polymers, pigments, and coatings, in paint and coating stripping, and in microelectronics and semiconductor manufacturing. It also serves as an extraction solvent in petrochemical processing, including aromatics (BTX) and butadiene recovery and acid-gas removal.

Why is NMP used in microelectronics and semiconductor processing?

As a high-boiling polar aprotic solvent, NMP dissolves a wide range of polymers and photoresist residues while remaining stable at elevated process temperatures. High-purity grades such as Micropure EG-2 are specified where low metal and particulate content matter for electronics fabrication.

What is the UN number for shipping NMP?

N-methyl-2-pyrrolidone ships under UN 1993 (N-methyl-2-pyrrolidone) per the SDS; confirm packing group and DOT/IMDG details with your shipper. RawSource supplies it in bulk drums and totes/IBCs with a CoA and SDS per shipment.

How is high-purity NMP priced and ordered in bulk?

Bulk NMP pricing depends on purity grade, volume, and packaging, so RawSource quotes against your specification rather than a fixed price. Submit a bulk RFQ with target purity, volume, and packaging for current pricing, MOQ, and lead time.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.