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

Pharmaceutical Grade Acetic Anhydride from Canada

Ultra-pure acetic anhydride meeting USP standards for pharmaceutical intermediate synthesis like aspirin production. Classified in HTS 2915.24.00.00 as chemically defined acetic anhydride, prior to note 3's last-in-order rule.

Duty Rate — Canada → United States

13.5%

Rate breakdown

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

Import Tips

Include FDA Drug Master File or equivalent for pharma imports

Test for heavy metals/impurities to confirm Chapter 29 purity standards

Separate from bulk shipments to avoid contamination cross-classification