Benzotriazole with Stabilizer from Mexico
Benzotriazole (CAS 95-14-7) with added stabilizer for transport stability, containing <0.5% anticaking agent. Remains classified under HTS 2933.99.82.10 per chapter note (f) allowing necessary stabilizers without changing principal classification. Used in automotive antifreeze formulations.
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 stabilizer composition and quantity on invoice; ensure additions qualify under note (f) safety/transport criteria
• Test for solubility changes from stabilizer