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Coumarin 343 97% (conteúdo de corante), Sigma-Aldrich®

Fornecedor: SIGMA ALDRICH MICROSCOPY

Sinônimos: 2,3,6,7-Tetrahydro-11-oxo-1H,5H,11H-[1]benzopyrano[6,7,8-ij]quinolizine-10-carboxylic Acid, 11-oxo-2,3,5,6,7,11-Hexahydro-1H-pyrano[2,3-f]pyrido[3,2,1-ij]quinoline-10-carboxylic acid

Nível de qualidade M-Clarity™ = MQ200

393029-100MG 393029-500MG
393029-100MGEA 108 EUR
393029-100MG 393029-500MG
Coumarin 343 97% (conteúdo de corante), Sigma-Aldrich®
Coumarin 343

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.


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.

Fórmula: C₁₆H₁₅NO₄
Peso Molecular: 285.30 g/mol
Ponto de Fusão: 240 °C (literatura)
Temperatura de Armazenamento: Room Temperature
Número MDL : MFCD00051335
Número CAS: 55804-65-4
EINECS: 259-824-6
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Especificações dos Resultados do Teste

Appearance (Colour): Yellow to Yellow-Orange to Very Dark Yellow Conforms to Requirements
Appearance (Form) Powder
Infrared spectrum Conforms to Structure
Wavelength, C=0.01 G/L Ethanol 441 - 445 nm
Extinction Coefficient in Ethanol ≥26000
Carbon 65.0 - 69.7 %
Nitrogen 4.6 - 5.2 %


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