ATTO Rho3B
|
Optical Properties |
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|
λabs |
566 |
nm |
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|
εmax |
1.2×105 |
M-1 cm-1 |
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|
λfl |
589 |
nm |
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|
ηfl |
50 |
%* |
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|
τfl |
1.5 |
ns |
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|
CF260 = ε260/εmax |
0.27 |
|
||
|
CF280 = ε280/εmax |
0.13 |
|
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| * solvent: ethanol at 20 °C |
ATTO Rho3B is a new fluorescent label related to the well-known dye Rhodamine B. The dye shows strong absorption and high thermal and photo-stability. The characteristic feature of the dye is its temperature depending fluorescence yield. The dye is moderately hydrophilic. ATTO Rho3B is a cationic dye.
After coupling to a substrate the dye carries a net electrical charge of +1. In solution its fluorescence can be excited efficiently in the range 545 - 575 nm.