12 &lamba; Ex/&lamba; Em (MeOH) = 524/550 nm ε (MeOH) = 91,000 Orange red solid soluble in DMSO or DMF Store at 4°C and protect from light, especially in solution C21H13Br5N2O3 MW: 740.86 &lamba; Ex/&lamba; Em (MeOH) = 524/550 nm ExEm ε (MeOH) = 91,000 Orange red solid soluble in DMSO or DMF Store at 4°C and protect from light, especially in solution C21H13Br5N2O3 2113523 MW: 740.86