ATTO 540Q NHS-ester Fluorescence Quencher 5 mg
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Product No. AD-540Q-35
ATTO 540Q is a novel fluorescence quencher (energy acceptor in FRET process).
ATTO-TEC is a wholly owned subsidiary of Leica Microsystems
Optical properties
- λ abs = 543 nm
- ε max = 1.05×105 M -1 cm -1
- CF 260 = ε 260 /ε max = 0.26
- CF 2800 = ε 280 /ε max = 0.27
ATTO 540Q is a novel fluorescence quencher (energy acceptor in FRET process). Characteristic features of the label are strong absorption and high thermal and photo-stability. The dye is moderately hydrophilic. ATTO 540Q is a cationic dye.
After coupling to a substrate the dye carries a net electrical charge of +1. As supplied ATTO 540Q consists of a mixture of two isomers with practically identical absorption.
- High thermal and photo-stability
- Moderately hydrophilic
- Cationic rhodamine dye