FAM (fluorescein) alkyne for copper-catalyzed Click chemistry, high purity (97+%) 5-isomer. The compound possesses significant aqueous solubility.




General properties
Appearance: | yellow solid |
Molecular weight: | 413.38 |
CAS number: | 510758-19-7 |
Molecular formula: | C25H15O6N |
Solubility: | good in aqueous buffers (pH > 8), alcohols, DMSO, DMF |
Quality control: | NMR 1H, HPLC-MS (95%) |
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: | 490 |
ε, L⋅mol−1⋅cm−1: | 80000 |
Emission maximum, nm: | 513 |
Fluorescence quantum yield: | 0.93 |
CF260: | 0.20 |
CF280: | 0.17 |