Quinoline
CAS 91-22-5
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 Zero · Imports 628.5K lb
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
Used in 2 sectors as 2 functional roles.
- •Corrosion inhibitor in All Other Chemical Product and Preparation Manufacturing (100%)Processing as a reactant
- •Absorbent in All Other Basic Organic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
Vendor Pricing
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
17 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 |
|---|---|---|---|---|
| AA BLOCKS | United States | $0.06 | 500 g | 98% |
| ALFA AESAR | Germany | $0.13 | 2.5 kg | 96% |
| Apollo Scientific UK | United Kingdom | $0.22 | 500 g | 98% |
| Combi-Blocks, Inc. | United States | $0.25 | 1 kg | 98% |
| AK Scientific Specialized | United States | $0.30 | 500 g | 95% |
| AK Scientific, Inc. | United States | $0.42 | 500 g | 98% |
| Sigma-Aldrich (Rush Stock) | Germany | $0.46 | 500 g | 98% |
| Sigma-Aldrich | Germany | $0.46 | 500 g | 98% |
| AstaTech, Inc | United States | $1.18 | 100 g | 95% |
| Fluorochem UK | United Kingdom | $1.89 | 25 g | 95% |
| Key Organics Ltd. | United Kingdom | $2.96 | 25 g | 95% |
| Interbioscreen | Hong Kong | $10.00 | 10 g | 95% |
| Specs | Netherlands | $68.97 | 10 g | 90% |
| Labotest KG | Germany | $217.80 | 5000 mg | 90% |
| Otava, Ltd. | Ukraine | $2280.00 | 50 mg | 95% |
| Otava, Ltd. (2 weeks) | Ukraine | $2724.00 | 50 mg | 90% |
| ChemDiv, Inc. | United States | $5480.00 | 50 mg | 90% |
Chemical Identity
Data Sources
- EPA CompTox (DSSTox) · DTXSID1021798Retrieved 2026-04-06
- PubChem · compound 7047Retrieved 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
Quinoline (CAS 91-22-5) https://chemicalindependence.com/chemical/91-22-5/ EPA CompTox (DSSTox): DTXSID1021798. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1021798 PubChem: 7047. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/7047 EPA Chemical Data Reporting: 91-22-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 91-22-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293349 for CAS 91-22-5. Reporting year: 2024. https://usatrade.census.gov/