2-Cyanopyrrole from Mexico
2-Cyanopyrrole is a heterocyclic nitrile with CN group on pyrrole ring, used in pharmaceutical and agrochemical synthesis. Classifies under HTS 2926.90.5050 as nitrile-function compound rather than heterocyclic per Chapter 29 priority rules. The nitrile defines its chemical character.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• NMR spectra confirming nitrile vs ring priority for CBP review
• Light-sensitive; declare inert atmosphere packaging
• Avoid 2933 classification by proving acyclic nitrile function principal