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

Pesticide-Grade Pyridazinone API Precursor from Canada

High-assay 5-amino-4-chloro-α-phenyl-3-pyridazinone imported as pesticide active ingredient precursor under HTS 2933.99.14.00. Meets chapter note requirements for separate chemically defined aromatic heterocycles used in pesticide manufacture.

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

Ensure batch certificates specify agricultural end-use to distinguish from pharmaceutical intermediates

Comply with USDA APHIS requirements for pesticide active ingredient imports

Use temperature-controlled shipping if stability data indicates degradation risk above 40°C