4-Nitrostyrene from Canada
4-Nitrostyrene (vinyl nitrobenzene) polymer precursor with nitro group on aromatic ring. Classified HTS 2904.20.5000 as nitrated hydrocarbon derivative. Polymerization inhibitor present for stability.
Duty Rate — Canada → United States
15.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• MEHQ inhibitor level (10-50ppm) critical for classification
• Refractive index (1.572) verification standard
• Dark storage mandatory—photopolymerizes rapidly