2-Pyrrolidone (2-Pyrrolidinone) from Germany
2-Pyrrolidone is a five-membered lactam ring compound used as a high-boiling solvent in pharmaceuticals, electronics, and polymer manufacturing. Classified under HTS 2933.79.85.00 as an other lactam with nitrogen hetero-atom only, not specifically enumerated elsewhere. Its cyclic amide structure distinguishes it from acyclic amides.
Duty Rate — Germany → United States
15%
Rate breakdown
9903.04.628.5%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Include NMR or HPLC purity certificates (>99%) to confirm heterocyclic lactam identity and avoid amide reclassification
• Comply with TSCA inventory requirements; provide end-use declaration to prevent diversion to restricted solvent applications
• Watch for misclassification as N-methylpyrrolidone (different HTS 2933.79.29); verify methyl substitution absent