Ammonium 7-Nitronaphth[1,2]oxadiazole-5-sulfonate from Mexico
Ammonium salt providing volatility advantages in certain dye sublimation processes, covered by HTS 2934.99.06.00 salts provision. The ammonium counterion facilitates thermal decomposition applications in specialty colorants.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Document ammonia content to prevent misclassification as free base
• Special ventilation requirements due to ammonia off-gassing potential
• Confirm pH stability as ammonium salts can hydrolyze in transit