Pharma-Grade N-Methyl-2-Pyrrolidone USP
Pharmaceutical-grade NMP meeting USP standards is the same chemically defined lactam as industrial NMP, classified under HTS 2933.79.20.00. The higher purity specification doesn't change its fundamental chemical classification as a nitrogen heterocyclic lactam.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pre-mixed as medicinal formulation component
Medicaments in measured doses fall under Chapter 30 regardless of individual chemical classification.
If imported as diagnostic reagent composite
Laboratory reagents containing organic compounds classified as composites in 3822.
If other lactams not specifically enumerated
Non-enumerated lactams fall under residual 'other' subheading within same heading.
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Import Tips & Compliance
• Provide USP CoA and DMF if used in drug formulations; FDA may require additional registration
• Segregate pharma-grade shipments to avoid cross-contamination claims during customs examination
• Higher duties possible if misdeclared; always reference specific HTS 2933.79.20.00 enumeration
Related Products under HTS 2933.79.20.00
N-Methyl-2-Pyrrolidone (NMP)
N-Methyl-2-pyrrolidone (NMP) is a versatile polar aprotic solvent classified as a lactam under HTS 2933.79.20.00 due to its five-membered heterocyclic ring containing a nitrogen hetero-atom and amide functionality. It is widely used in industrial applications like paint stripping, polymer processing, and electronics manufacturing.
2-Pyrrolidone (2-Pyrrolidinone)
2-Pyrrolidone is a five-membered lactam ring compound with a single nitrogen hetero-atom, specifically enumerated under HTS 2933.79.20.00. It serves as a chemical intermediate for synthesizing pharmaceuticals, agrochemicals, and vinylpyrrolidone polymers.
Industrial 2-Pyrrolidone with Stabilizer
2-Pyrrolidone containing added stabilizers for transport and preservation remains classified under HTS 2933.79.20.00 per Chapter 29 note (f). The stabilizer doesn't render it suitable for specific use beyond general chemical applications.
NMP Electronic Grade Solvent
High-purity NMP for semiconductor manufacturing retains classification under HTS 2933.79.20.00 as the same chemically defined heterocyclic lactam. End-use purity doesn't affect tariff classification.
2-Pyrrolidone Polymer Intermediate
Bulk 2-Pyrrolidone used specifically for polyvinylpyrrolidone (PVP) synthesis is classified under HTS 2933.79.20.00. Its role as chemical intermediate doesn't change its status as enumerated lactam.
NMP Paint Stripper Base (Pure)
Pure NMP imported for methylene chloride-free paint stripper formulations classified under HTS 2933.79.20.00. Remains a chemically defined compound despite common paint removal applications.