Tropicamide from Canada
Tropicamide, mydriatic cycloplegic with tropic acid ester of 2-phenylbenzimidazole (N-heterocycle only). HTS 2933.99.8290 other aromatic heterocyclic nitrogen compounds. Ophthalmic API.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document ester hydrolysis stability under ophthalmic pH
• Specify racemic vs resolved tropic acid enantiomers
• Ophthalmic preservative compatibility testing