Coumarin 343 azide|Coumarin 343 N3 This product will be discontinued soon in favor of Coumarin 343 X azide. We may still have some material in stock (please see availability above). This greenish-blue emitting fluorophore can be used as a FRET donor for FAM. Azide derivative is suitable for Click Chemistry. Coumarin 343 azide|Coumarin 343 N3   General properties: Appearance: yellow powder Molecular weight: 441.48 Molecular formula: C22H27N5O5 Solubility: Good in organic solvents (DCM, chloroform, DMF, DMSO, MeCN, alcohols), poor in water Quality control: NMR 1H (95%) TLC, functional testing Storage conditions: Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light.   Spectral properties: Excitation maximum, nm: 437 ε, L⋅mol−1⋅cm−1: 39000 Emission maximum, nm: 477 Fluorescence quantum yield: 0.63 CF260: 0.29 CF280: 0.24   产品列表： Coumarin 343 X azide            Ex/Em:430nm-470nm Coumarin azide                  Ex/Em:490nm-530nm Coumarin azide                  Ex/Em:480nm-520nm Coumarin 343 X NHS ester        Ex/Em:430nm-470nm   Coumarin NHS ester              Ex/Em:400nm-450nm Coumarin NHS ester              Ex/Em:450nm-490nm Coumarin NHS ester              Ex/Em:470nm-510nm   Coumarin 343 X alkyne           Ex/Em:430nm-470nm Coumarin alkyne                 Ex/Em:410nm-460nm   Coumarin 343 X maleimide        Ex/Em:430nm-470nm Coumarin maleimide              Ex/Em:440nm-480nm   Coumarin 343 X carboxylic acid  Ex/Em:430nm-470nm Coumarin carboxylic acid        Ex/Em:440nm-480nm   Coumarin 343 X amine            Ex/Em:430nm-470nm Coumarin amine                  Ex/Em:440nm-480nm   Coumarin 343 X Thiol            Ex/Em:430nm-470nm Coumarin Thiol                  Ex/Em:440nm-480nm