METHYL PYRROLIDONE- ▸ 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.
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.
Request SDS →⚠ WARNING: This product can expose you to N-Methyl-2-Pyrrolidone, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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.
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 212-828-1
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Regulatory restriction status
N-Methyl-2-Pyrrolidone (NMP) (CAS 872-50-4) appears on the regulatory list(s) below. This is public regulatory information about the substance — not a statement about any specific supplier’s material, and not a safety claim. Confirm the current status for your jurisdiction and intended use.
- California Proposition 65: listed for reproductive toxicity, listed 15 Jun 2001. A California Proposition 65 warning applies (see the warning above).
- REACH Restriction (Annex XVII), entry 71: specific EU uses/conditions of the substance are restricted.
- REACH SVHC Candidate List (EU): listed 20 Jun 2011 on the basis of toxic for reproduction (Art. 57(c)). SVHC status triggers EU supplier-communication and notification duties above 0.1% w/w; it is not, by itself, a ban on sale.
- U.S. EPA TSCA Section 6: subject to a U.S. federal risk-management action (6(a) risk mgmt (rulemaking)).
Sources: ECHA Candidate List / Annex XIV / Annex XVII (echa.europa.eu); U.S. EPA TSCA; UN Stockholm Convention / EU POPs Regulation; California OEHHA Proposition 65 list. Retrieved 2026-07-13.
Solutions Using This Product
Process-solution guides on this site that specify this chemistry:
- High-Boiling Polar Aprotic Solvents (NMP, GBL & Alternatives) (Industrial Manufacturing)
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.
What is the REACH and TSCA regulatory status of N-Methyl-2-Pyrrolidone (NMP)?
N-Methyl-2-Pyrrolidone (NMP) (CAS 872-50-4) is subject to U.S. TSCA Inventory requirements; supplying it into the EU requires valid REACH registration ((EC) No 1907/2006). RawSource cannot verify a third-party supplier's registrations — buyers should require documented TSCA and REACH compliance for their jurisdiction and volume (EC 212-828-1).