Isoquinoline
CAS 119-65-3
U.S. production volumes are classified as confidential business information.
At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.
Why supply is unknownProduction is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.
Where It Comes From
Customs basis: HS 293349 · basket
- 2023
- US production Confidential · Imports Confidential
- 2019
- US production Confidential · Imports Confidential
These shares come from HS customs code 293349, which covers 94 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Spain
- Portugal
- Germany
- Netherlands
- Israel
- Australia
- Taiwan
- Lithuania
- South Africa
- Hong Kong
Why It Matters
Industrial Uses
- •Catalyst in Plastics Material and Resin Manufacturing (100%)Processing as a reactant
Vendor Pricing
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
26 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 | $0.04 | 500 g | 98% |
| A2B Chem LLC | United States | $0.04 | 1 kg | 97% |
| AA BLOCKS | United States | $0.05 | 1 kg | 98% |
| Chemscene | United States | $0.06 | 1 kg | — |
| Ambeed, Inc. | United States | $0.06 | 1 kg | 97% |
| Fluorochem EU | Germany | $0.07 | 500 g | 96% |
| Synthonix | United States | $0.08 | 500 g | 95% |
| Fluorochem UK | United Kingdom | $0.10 | 100 g | 96% |
| Manchester Organics | United Kingdom | $0.11 | 2.5 kg | 96% |
| Apollo Scientific US | United Kingdom | $0.19 | 500 g | 95% |
| Angene International Limited | United States | $0.23 | 100 g | 97% |
| AK Scientific Specialized | United States | $0.24 | 500 g | 95% |
| Combi-Blocks, Inc. | United States | $0.25 | 1 kg | 97% |
| AK Scientific, Inc. | United States | $0.33 | 500 g | 98% |
| ALFA AESAR | Germany | $0.63 | 500 g | 97% |
| Sigma-Aldrich (Rush Stock) | Germany | $0.67 | 500 g | 97% |
| Sigma-Aldrich | Germany | $0.67 | 500 g | 97% |
| AstaTech (2 weeks) | United States | $3.08 | 25 g | 95% |
| MedChemExpress MCE | Sweden | $9.92 | 5 g | 99.81% |
| Interbioscreen | Hong Kong | $24.00 | 10 g | 95% |
| Labotest KG | Germany | $217.80 | 5000 mg | 90% |
| MedKoo Biosciences, Inc | United States | $450.00 | 1 g | 98% |
| Otava, Ltd. | Ukraine | $2280.00 | 50 mg | 95% |
| Otava, Ltd. (2 weeks) | Ukraine | $2724.00 | 50 mg | 95% |
| Key Organics Ltd. | United Kingdom | $2740.00 | 50 mg | 95% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 98% |
Chemical Identity
Data Sources
- EPA CompTox (DSSTox) · DTXSID2047644Retrieved 2026-04-06
- PubChem · compound 8405Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
Isoquinoline (CAS 119-65-3) https://chemicalindependence.com/chemical/119-65-3/ EPA CompTox (DSSTox): DTXSID2047644. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID2047644 PubChem: 8405. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/8405 EPA Chemical Data Reporting: 119-65-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 119-65-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293349 for CAS 119-65-3. Reporting year: 2024. https://usatrade.census.gov/