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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

10%

Rate breakdown

9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%

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