Hydralazine Hydrochloride USP
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not specifically listed as a cardiovascular drug
Other aromatic heterocyclic drugs fall here if not enumerated in 2933.99.51.00; hydralazine could be classified as 'other' absent specific drug designation.
If imported as stabilized salt form with excipients exceeding Chapter 29 tolerances
Antibiotics and derivatives with added stabilizers may shift to 2941 if additions render it outside pure compound scope per Chapter notes.
If pre-formulated into dosage units like tablets or capsules
Finished medicaments shift from Chapter 29 bulk APIs to Chapter 30 as presented for retail therapeutic use.
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Import Tips & Compliance
• 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
Related Products under HTS 2933.99.51.00
Hydralazine HCl EP Grade
European Pharmacopoeia grade hydralazine hydrochloride, a pure aromatic heterocyclic compound acting as a smooth muscle relaxant for blood pressure control. Classified under HTS 2933.99.51.00 as the specific cardiovascular drug in bulk powder form. Complies with Chapter 29 for separate chemically defined compounds without solvents or additives.
Apresoline API (Hydralazine Hydrochloride)
Bulk active pharmaceutical ingredient equivalent to Apresoline, consisting of pure hydralazine hydrochloride, a phthalazine-based vasodilator for hypertensive emergencies. HTS 2933.99.51.00 covers this specific listed cardiovascular drug as a separate chemically defined aromatic heterocyclic compound.
Hydralazine Hydrochloride BP 99%+
British Pharmacopoeia compliant hydralazine hydrochloride powder, >99% purity, used in compounding IV solutions for acute hypertension. Falls squarely under HTS 2933.99.51.00 as the enumerated aromatic heterocyclic cardiovascular drug per tariff description.