Kd: 250 nM &lamba; Ex/&lamba; Em (no Ca2) = 349/482 nm &lamba; Ex/&lamba; Em (high Ca2) = 331/398 nm ε (349 nm, no Ca2) = 34,000 M-1cm-1 Light yellow solid soluble in DMSO Store at 4°C and protect from light, especially in solution C32H26N3Na5O12 MW: 759.5 [132319-56-3] Kd: 250 nM d &lamba; Ex/&lamba; Em (no Ca2) = 349/482 nm ExEm2 &lamba; Ex/&lamba; Em (high Ca2) = 331/398 nm ExEm2 ε (349 nm, no Ca2) = 34,000 M-1cm-1 2 -1-1 Light yellow solid soluble in DMSO Store at 4°C and protect from light, especially in solution C32H26N3Na5O12 32263512 MW: 759.5 [132319-56-3]