Description: Tetrabromorhodamine 123 can be used to generate singlet oxygen (1O2) in mitochondrial membranes. The dye has a quantum yield for singlet oxygen generation of 0.65-0.7 and is particularly toxic to carcinoma cells.
&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