Gamma Acid (2-Amino-8-naphthol-6-sulfonic Acid) from Mexico
Gamma acid functions as a dye coupler with amino, naphthol, and sulfonic acid groups, used in acid and direct dyes. As a pure organic compound with oxygen-function amino groups, it aligns with Chapter 29 scope. Falls under 2922.21.5000 for other such acids.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide molecular formula C10H9NO5S and structure diagram on commercial invoice
• Test for isomer purity to distinguish from 2922.21.1000 specified compounds