Membrane-impermeant calcium indicator that can be loaded into cells via microinjection or scrape loading.
- Kd: 1 uM
- λ Ex/λ Em (low or high [Ca2+]) = 556nm/576nm
- λµ (556 nm) = 80,000 M-1cm-1
- Orange red solid soluble in DMSO and water (pH >6)
- Store at 4°C and protect from light, especially in solution
- MW: 930