393029

Coumarin 343

Dye content 97 %

• Empirical Formula (Hill Notation): C₁₆H₁₅NO₄
• CAS Number: 55804-65-4
• Molecular Weight: 285.29
• EC Number: 259-824-6
• MDL number: MFCD00051335
• UNSPSC Code: 12171500
• PubChem Substance ID: 24864499
• NACRES: NA.47

Properties

• form: powder
• composition: Dye content, 97%
• mp: 240 °C (lit.)
• λmax: 443 nm
• ε (extinction coefficient): ≥26000 at 441-445 nm in ethanol at 0.01 g/L
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: OC(=O)C1=Cc2cc3CCCN4CCCc(c2OC1=O)c34
• InChI: 1S/C16H15NO4/c18-15(19)12-8-10-7-9-3-1-5-17-6-2-4-11(13(9)17)14(10)21-16(12)20/h7-8H,1-6H2,(H,18,19)
• InChI key: KCDCNGXPPGQERR-UHFFFAOYSA-N

Description

General description

Coumarin 343 is a small hydrophilic dye. It is unable to penetrate the cell membrane by itself. Coumarin 343 is also known as coumarin 519. Depending on the pH of the medium, coumarin 343 exists in neutral and anionic forms.

Application

Coumarin 343 has been used in many different applications that include solution dynamic probes, laser dyes, and organic sensitizers in dye-sensitized solar cells.

It is suitable to study photo-induced charge injection into other metal oxides such as TiO2, ZrO2, and ZnO.

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)