3-Nitrophthalic acid
CAS 603-11-2
1,2-Benzenedicarboxylic acid, 3-nitro-
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 291739 · basket
These shares come from HS customs code 291739, which covers 103 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Netherlands
- Malaysia
- Colombia
- Switzerland
- Turkey
- Germany
- Peru
- Brazil
- Sweden
- Belgium
- Denmark
- Czech Republic
- Ukraine
- Hong Kong
Why It Matters
No EPA sector or FDA product records name a use for this chemical.
Vendor Pricing
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
27 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 | $0.03 | 500 g | 96% |
| BLD Pharmatech GmbH | Germany | $0.04 | 1 kg | 98% |
| BLD Pharmatech Ltd. | China | $0.04 | 1 kg | 98% |
| Apollo Scientific US | United Kingdom | $0.05 | 2.5 kg | 98% |
| A2B Chem LLC | United States | $0.05 | 100 g | 98% |
| Manchester Organics | United Kingdom | $0.05 | 2.5 kg | 95% |
| Chemscene | United States | $0.06 | 1 kg | — |
| AA BLOCKS | United States | $0.06 | 100 g | 98% |
| Fluorochem UK | United Kingdom | $0.09 | 100 g | 95% |
| MedChemExpress MCE | Sweden | $0.09 | 1 kg | 99.95% |
| BLD Pharmatech Co., Limited | United States | $0.11 | 1 kg | 98% |
| Ambeed, Inc. | United States | $0.11 | 1 kg | 98% |
| Synthonix | United States | $0.16 | 500 g | 95% |
| AK Scientific Specialized | United States | $0.20 | 1 kg | 95% |
| AK Scientific, Inc. | United States | $0.25 | 1 kg | 98% |
| Combi-Blocks, Inc. | United States | $0.25 | 1 kg | 98% |
| ALFA AESAR | Germany | $0.44 | 500 g | 95% |
| Angene International Limited | United States | $0.53 | 500 g | 98% |
| Sigma-Aldrich (Rush Stock) | Germany | $0.67 | 100 g | 95% |
| Sigma-Aldrich | Germany | $0.67 | 100 g | 95% |
| Specs | Netherlands | $132.13 | 10 g | 90% |
| Labotest KG | Germany | $217.80 | 5000 mg | 90% |
| Otava, Ltd. | Ukraine | $2280.00 | 50 mg | 90% |
| Key Organics Ltd. | United Kingdom | $2740.00 | 50 mg | 95% |
| Princeton BioMolecular Research (SC) | United States | $2900.00 | 100 mg | 90% |
| Vitas M Chemical Limited | Hong Kong | $3170.00 | 100 mg | 90% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 98% |
Chemical Identity
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
3-Nitrophthalic acid (CAS 603-11-2) https://chemicalindependence.com/chemical/603-11-2/ EPA TSCA Inventory: CAS 603-11-2. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 291739 for CAS 603-11-2. Reporting year: 2024. https://usatrade.census.gov/