4-Nitrostyrene from Mexico
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 — Mexico → United States
15.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, 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