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

Sulfur Dioxide Anhydride for Laboratory Research from Canada

Research-grade SO2 generator flasks and replacement chemicals for organic synthesis labs. Pure sulfur dioxide classified under HTS 2811.29.30.00 per Chapter 28 chemical definitions. Small lecture bottle packaging.

Duty Rate — Canada → United States

14.2%

Rate breakdown

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

Import Tips

DEA Schedule I exemption for research quantities; university PO acceptance; explosion-proof regulator requirements