Cyanuric Acid (1,3,5-Triazine-2,4,6-triol) from Mexico
Cyanuric acid features a hydrogenated triazine ring structure with three hydroxyl groups, qualifying as a heterocyclic nitrogen compound under HTS 2933.69.60. It serves as a stabilizer in chlorine bleach for pools and a precursor in herbicides, fitting Chapter 29's scope for separate chemically defined compounds.
Duty Rate — Mexico → United States
13.5%
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
• Provide CAS number (108-80-5) and spectroscopic data to distinguish from triazine salts or derivatives
• Ensure declaration specifies anhydrous form to avoid confusion with hydrated versions potentially seen as mixtures
• Label for pool stabilizer end-use carefully, as formulated products may require different classification