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AdipoGen Fura-2 pentapotassium salt (1 mg)
Supplier: AdipoGen CDXF0013M001
Chemical. CAS: 113694-64-7. Formula: C29H22N3O14 . 5K. MW: 831.99. Fura-2 pentapotassium salt is a widely used UV-excitable fluorescent calcium indicator. It is a fluorophore chelating probe for Ca2+ used widely in biological systems to analyze intracellular calcium levels. It can be used to detect calcium in cells. A diagnostic shift in the excitation spectrum from 363nm to 335nm indicates FURA-2 chelation to Ca2+. Upon calcium binding, the fluorescent excitation maximum of the indicator undergoes a blue shift from 363 nm (Ca2+-free) to 335 nm (Ca2+-saturated), while the fluorescence emission maximum is relatively unchanged at ~510 nm. Analysis of Ca2+ flux in and out of cells with Fura-2 introduces a powerful spectrographic handle to investigate and elucidate correlated biological events such as neuronal ion channel activation. A major use of Fura-2 is in drug discovery, for measuring intracellular calcium mobilization after activation of GPCRs and calcium channels.
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