</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Carbazole Crystals from Canada

Carbazole, a tricyclic nitrogen heterocycle used in dyes, electronics, and pharmaceuticals. Pure form classified under HTS 2933.99.9701 as other nitrogen hetero-atom compounds, meeting chemically defined compound criteria.

Duty Rate — Canada → United States

16.5%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

Import Tips

Sublimed purity certificate essential; technical grade risks 3824

REACH compliance for EU re-export; TSCA for US manufacturing

Light-sensitive; improper packaging causes degradation and disputes