1H,5H,11H-[1]Benzopyrano[6,7,8-ij]quinolizine-10-carboxylic acid, 2,3,6,7-tetrahydro-11-oxo-, ethyl ester
CAS 55804-66-5
EPA and Census publish no US supply data for this chemical.
US productionNot reported
Top sourceNo public record
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 unknownWhere It Comes From
EPA and Census publish no US supply data for this chemical.
Why It Matters
No EPA sector or FDA product records name a use for this chemical.
Vendor Pricing
$135.00/gA2B Chem LLC
CountryUnited States
Pack$135.00 / 1 g
Purity98%
Vendors17 available
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
16 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 |
|---|---|---|---|---|
| Aaron Chemicals LLC | Hong Kong | $155.00 | 5 g | 98% |
| Angene Chemical | China → Hong Kong | $156.00 | 5 g | — |
| Interbioscreen | Hong Kong | $170.00 | 10 g | 95% |
| AA BLOCKS | United States | $213.80 | 5 g | 98% |
| Labotest KG | Germany | $217.80 | 5000 mg | 90% |
| Combi-Blocks, Inc. | United States | $240.00 | 1 g | 98% |
| Angene International Limited | United States | $432.00 | 1 g | 98% |
| BLD Pharmatech Ltd. | China | $440.00 | 100 mg | 98% |
| AK Scientific, Inc. | United States | $480.00 | 250 mg | 98% |
| MedChemExpress MCE | Sweden | $525.14 | 500 mg | 98% |
| Sigma-Aldrich (Rush Stock) | Germany | $976.82 | 500 mg | — |
| Sigma-Aldrich | Germany | $976.82 | 500 mg | — |
| ChemDiv, Inc. | United States | $7666.67 | 15 mg | 90% |
| Princeton BioMolecular Research (SC) | United States | $8000.00 | 15 mg | 90% |
| Vitas M Chemical Limited | Hong Kong | $9000.00 | 10 mg | 90% |
| ChemBridge Corporation (rush stock) | United States | $13600.00 | 5 mg | 90% |
Chemical Identity
CAS55804-66-5
PubChem CIDNot recorded
DTXSIDDTXSID4069052
FormulaC18H19NO4
Mol. Weight313.353 g/mol
SMILESCCOC(=O)C1=CC2=CC3=C4N(CCC3)CCCC4=C2OC1=O
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
Brief citations
1H,5H,11H-[1]Benzopyrano[6,7,8-ij]quinolizine-10-carboxylic acid, 2,3,6,7-tetrahydro-11-oxo-, ethyl ester (CAS 55804-66-5) https://chemicalindependence.com/chemical/55804-66-5/ EPA TSCA Inventory: CAS 55804-66-5. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory