Stabilized N-Vinyl-2-Pyrrolidone Monomer from Japan
This is N-Vinyl-2-pyrrolidone monomer with added stabilizers like 50-100 ppm hydroquinone to prevent premature polymerization during storage and transport. It remains a separate chemically defined compound under Chapter 29 notes (f) and (g). Classified specifically under HTS 2933.79.30.00 for its lactam structure.
Duty Rate — Japan → United States
15.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Document stabilizer concentration precisely; excess may trigger reclassification as a chemical mixture under 3824
• Use proper HazMat packaging (UN 3077 or 1760) and include polymerization risk warnings in import declarations
• Test for active monomer content (>99%) upon arrival to confirm no in-transit polymerization occurred