3-Methyl-1-p-sulfophenyl-5-pyrazolone from Mexico
A sulfonic acid derivative of pyrazolone used as a coupler in color photographic development to produce yellow dye images. This aromatic heterocyclic compound with nitrogen hetero-atoms is essential for multilayer color film processing. Its photographic specificity places it under HTS 2933.99.24.00.
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
• Include wastewater treatment plans due to sulfonic acid content; verify sulfonated derivative classification per Chapter 29 notes; use UN-approved packaging for corrosive liquids