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Pesticide-Grade Pyridazinone API Precursor from Mexico

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 — Mexico → United States

16.5%

Rate breakdown

9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter

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