Coumarin 343

4-oxo-3-oxa-13-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1,5,7,9(17)-tetraene-5-carboxylic acid

CAS: 55804-65-4

Molecular Formula	`C16H15NO4`
Molecular Weight	285.1001 g/mol
LogP	2.19
Topological Polar Surface Area	70.75 Å²
Hydrogen Bond Donors	1
Hydrogen Bond Acceptors	4
Rotatable Bonds	1
Exact Mass	285.1001
Heavy Atoms	21
Complexity	819.1

Chemical Identifiers

CAS Number	55804-65-4
SMILES	`C1CC2=C3C(=C4C(=C2)C=C(C(=O)O4)C(=O)O)CCCN3C1`

Product Overview

Coumarin 343 (CAS 55804-65-4), with molecular formula C16H15NO4 and molecular weight 285.1001 g/mol. IUPAC: 4-oxo-3-oxa-13-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1,5,7,9(17)-tetraene-5-carboxylic acid.

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Safety Data Sheet (MSDS / SDS) View the Laboratory Chemical Safety Summary (LCSS) on PubChem — includes GHS classifications, hazard statements, first aid measures, and handling precautions.

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Frequently Asked Questions

What is the typical lead time for this product?

Lead time typically ranges from 3-7 business days for in-stock items. For larger quantities or custom orders, please contact us for specific lead times.

Can you provide samples for testing?

Yes, we offer sample quantities for quality testing. Please submit an inquiry with your requirements and we will arrange samples accordingly.

What documentation do you provide with the product?

We provide COA (Certificate of Analysis), MSDS (Material Safety Data Sheet), and technical data sheets with each shipment.

Do you ship internationally?

Yes, we ship to most countries worldwide. Shipping costs and delivery times vary by location. Please contact us for specific shipping information.

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