Succinimide from Germany
Succinimide is a cyclic imide (lactam) with a five-membered heterocyclic ring containing nitrogen, derived from succinic anhydride, and considered aromatic or modified aromatic in context. It is classified under HTS 2933.79.1500 as an other aromatic/modified aromatic lactam used in pharmaceutical intermediates like antiseizure drugs. Chapter notes confirm classification for chemically defined nitrogen-heterocyclic lactams.
Duty Rate — Germany → 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
• Include CAS registry data (123-56-8) in import docs for verification; ensure no added solvents beyond transport per note (e)
• Pitfall: bulk imports mistaken for chapter 29 exclusions like urea salts