$82.00 – $181.00
Leakage-resistant, ratiometric calcium (Ca²⁺) indicator, membrane permeable.
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Emission: 505 nm
Kd: 145 nM
MW: 1132 g/mol
Solubility: DMSO
Purity: >95%
Filter Set: Fura-2
Storage: -20°C
Size: 1 mg, 20 x 50 ug, 5 x 50 ug
CAS Number: 172890-84-5
UV-excitable, ratiometric green indicator for intracellular calcium (Ca²⁺) measurements with longer cellular retention compared to Fura-2 AM and similar spectral properties. Ex/Em: 340/505 nm can be used to measure Ca²⁺-bound Fura-2, and Ex/Em: 380/505 nm can be used to detect Ca²⁺-free Fura-2. Ratiometry is optimal for imaging applications where quantification of intracellular Ca²⁺ concentrations is desired, and reduces effects of photobleaching, heterogenous dye loading, and variable cell morphology.