Hydralazine hydrochloride
Drug ingredientCAS 304-20-1
This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.
This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.
Why supply is unknownProduction is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.
Where It Comes From
Customs basis: HS 293399 · basket
These shares come from HS customs code 293399, which covers 518 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Taiwan
- Poland
- Canada
- Ivory Coast
- Greece
- Hungary
- Indonesia
- Latvia
- Belgium
- Slovakia
- Czech Republic
- Austria
- Netherlands
- Finland
- Denmark
- Croatia
- Australia
- South Africa
- Sweden
- Hong Kong
- Malta
- Singapore
- Lithuania
- Malaysia
- Oman
- Serbia
60 FDA-registered drug labelers
Why It Matters
Appears in 4 drug and cosmetic product listings (FDA).
- •Hydralazine Hydrochloride
- •isosorbide dinitrate and hydralazine hydrochloride
- •Hydralazine
- •BiDil
Vendor Pricing
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
18 more vendors
| Vendor | Country Supplier country. Where available, shows shipping origin. When the supplier ships from a different country than where they are registered, both are shown. Most suppliers show registration country only. | $/g | Pack | Purity |
|---|---|---|---|---|
| Angene Chemical | China → Hong Kong | $3.30 | 100 g | 98% |
| A2B Chem LLC | United States | $4.04 | 25 g | 98% |
| Chemscene | United States | $4.76 | 25 g | — |
| AA BLOCKS | United States | $5.20 | 25 g | 98% |
| Ambeed, Inc. | United States | $6.64 | 25 g | 98% |
| Fluorochem EU | Germany | $8.95 | 5 g | 98% |
| Angene International Limited | United States | $9.84 | 25 g | 98% |
| CliniSciences GmbH | Switzerland | $32.25 | 1 g | 99% |
| HTS Biochemie Innovationen | Germany | $38.00 | 5 g | 95% |
| MedKoo Biosciences, Inc | United States | $45.00 | 10 g | 98% |
| Apexbio Technology LLC | United States | $220.00 | 500 mg | 98% |
| MedChemExpress MCE | Sweden | $225.06 | 500 mg | 99.97% |
| Molnova | China | $260.00 | 200 mg | 99% |
| Labotest KG | Germany | $453.00 | 1000 mg | 90% |
| Axon Medchem | Netherlands | $1200.00 | 50 mg | 98% |
| Princeton BioMolecular Research (SC) | United States | $4200.00 | 50 mg | 90% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 98% |
| TimTec, LLC | United States | $13333.33 | 30 mg | 90% |
Chemical Identity
Data Sources
- PubChem · compound 9351Retrieved 2026-04-07
- EPA TSCA InventoryRetrieved 2026-04-24
- FDA National Drug Code directoryRetrieved 2026-04-07
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
Hydralazine hydrochloride (CAS 304-20-1) https://chemicalindependence.com/chemical/304-20-1/ PubChem: 9351. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/9351 EPA TSCA Inventory: CAS 304-20-1. Retrieved 2026-04-24. https://www.epa.gov/tsca-inventory FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 293399 for CAS 304-20-1. Reporting year: 2024. https://usatrade.census.gov/