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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing >0.3% fluorine as impurity
Fluorinated heterocyclics have separate provisions; trace fluorination from synthesis could trigger this if not pure hydralazine.
If dissolved in water or solvent for stability during transport
Solutions exceeding Chapter 29 note (d)/(e) tolerances shift to mixtures of chemicals if solvent imparts specific suitability.
If for research-grade with immunological testing impurities
Immunological products are excluded from Chapter 29 per note 2(e); could apply if batch contaminated during validation.
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Import Tips & Compliance
• Submit EP certificate and impurity profile (<0.5% related substances) to customs; mismatch leads to 2933.99.9700 reclassification
• Declare as 'pharmaceutical reference standard' if for QC labs to differentiate from bulk API and avoid higher scrutiny
• Package in amber glass with desiccant; improper moisture control often triggers FDA rejection at entry
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.
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.