Bioactivity | Fura-2 pentapotassium is a scaled fluorescent dye that can be used for intracellular calcium imaging with the Kd value of 140 nM. Fura-2 pentapotassium has an emission wavelength of 510 nm and excitation wavelengths of 340 nm or 380 nm and the ratio of 340/380 fluorescence intensity is proportional to the intracellular Ca2+ level[1][2]. |
Invitro | Fura-2 pentapotassium (10 μM, 2 min) can be used to detect changes in the concentration of calcium ions in neutrophils of heparinized peripheral blood[1].Fura-2 pentapotassium (10 μM, 5 min) can be used as a calcium probe to assess the distribution of calcium ions within heart mitochondria without affecting the activity of it in rat[2]. |
Name | Fura-2 pentapotassium |
CAS | 113694-64-7 |
Formula | C29H22K5N3O14 |
Molar Mass | 831.99 |
Appearance | Solid |
Transport | Room temperature in continental US; may vary elsewhere. |
Storage | -20°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |
Reference | [1]. Omar Rafael Alemán, et al. The Antibody Receptor Fc Gamma Receptor IIIb Induces Calcium Entry via Transient Receptor Potential Melastatin 2 in Human Neutrophils. Front Immunol. 2021 May 13;12:657393. doi: 10.3389/fimmu.2021.657393. [2]. James G. McCormack, et al. Studies on mitochondrial Ca2+-transport and matrix Ca2+ using fura-2-loaded rat heart mitochondria. Biochim Biophys Acta. 1989 Mar 23;973(3):420-7. |