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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If modified with steroid-like impurities
Steroid heterocyclic derivatives have separate provisions; could apply if synthesis contamination.
If containing heavy metal catalyst residues > Chapter 29 limits
Inorganic metal compounds from catalysis excluded; residues shift to Chapter 28.
If for diagnostic reagent-grade with added buffers
Laboratory reagents shift to 3822 if formulated beyond pure compound with identification aids.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Include BP monograph compliance statement; customs rejects without pharmacopeial reference
• Ship under temperature control (15-30°C); deviation voids stability claims
• Avoid 'research chemical' labeling—triggers DEA scrutiny despite non-controlled status
Related Products under HTS 2933.99.51.00
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.
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.