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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as other heterocyclic compounds with nitrogen rather than specifically lactams
If lactam functionality not principal characteristic, falls under later numerical heading 2933.99 per classification note.
If when imported as aqueous solution exceeding transport-only dilution
Solutions not qualifying under Chapter 29 note (d) or (e) classified as mixtures in Chapter 38.
If derivatives used as antibiotic intermediates
Certain nitrogen heterocycles specifically for antibiotics classified in heading 2941, which occurs later numerically.
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Import Tips & Compliance
• Include Certificate of Analysis (CoA) confirming >99% purity to establish it as a separate chemically defined compound per Chapter 29 note (a)
• Declare proper UN number (3265) for corrosive liquid classification and ensure DOT-compliant packaging
• Monitor REACH-like restrictions; provide end-use statements if destined for regulated applications like pharmaceuticals
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.
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.
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.