1,8-Naphthalimide from Mexico
1,8-Naphthalimide is an aromatic lactam featuring a fused naphthalene ring system with a nitrogen-containing heterocyclic imide group. It qualifies for HTS 2933.79.1500 as an aromatic lactam employed in fluorescent dyes and optical brighteners. The classification adheres to Chapter 29's priority for last numerical order among applicable heterocyclic headings.
Duty Rate — Mexico → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Certify non-coloring matter status to avoid Chapter 32 exclusion; document stabilizer additions under note (f)
• Common issue: confusion with heading 3204 if dyed