2933.99.51.00/Hydralazine Hydrochloride USP/Mexico

Hydralazine Hydrochloride USP from Mexico

Hydralazine hydrochloride is a chemically defined heterocyclic compound with nitrogen hetero-atoms, specifically an aromatic phthalazine derivative used as a direct-acting peripheral vasodilator. It falls under HTS 2933.99.51.00 as a cardiovascular drug in pure form for pharmaceutical manufacturing or compounding. This powder form meets Chapter 29 note (a) for separate chemically defined organic compounds.

Duty Rate — Mexico → United States

110%

Rate breakdown

9903.04.60100%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

9903.05.5510%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

Calculate with your customs value Verify with the Tariff Assistant

Import Tips

• Provide Certificate of Analysis (CoA) confirming USP grade purity >98% and identity via HPLC to avoid reclassification as non-pharmaceutical chemical

• Include FDA Drug Master File (DMF) reference and end-use statement specifying pharmaceutical manufacturing to qualify for drug tariff treatment

• Ensure proper hazardous material declaration (UN 2811) as toxic substance; common pitfall is inadequate stability data for shelf-life claims