Description
Optical properties
λ abs = 603 nm
ε max = 1.2×10 5 M -1 cm -1
λ fl = 627 nm
n fl = 80 %
τ fl = 3.9 ns
CF 260 = ε 260 /ε max = 0.28
CF 280 = ε 280 / ε max = 0.43
ATTO Rho13 is a new fluorescent label belonging to the class of rhodamines. Characteristic features of the label are strong absorption, high fluorescence quantum yield, and high thermal and photo-stability. ATTO Rho13 is a cationic dye. After coupling to a substrate the dye carries a net electrical charge of +1.
The label is moderately hydrophilic. Its fluorescence is excited most efficiently in the range 545 - 575 nm.