ATTO 343H NHS-Ester Hydrophilic Fluorescent Label 5 mg
Product No. AD343H35
ATTO 343H is a hydrophilic short wavelength fluorescent marker with a coumarin structure. The characteristic properties of this dye include high fluorescence quantum yield, large Stokes-shift, good photostability and low molecular weight.
"ATTO-TEC is a wholly owned subsidiary of Leica Microsystems"
Optical properties
- λ abs = 343 nm
- ε max = 1.9×104 M -1 cm -1
- λ fl = 441 nm
- n fl = 90 %
- τ fl = 4.8 ns
- CF 260 = ε 260 /ε max = 0.19
- CF 280 = ε 280 / ε max = 0.15
ATTO 343H is a hydrophilic short wavelength fluorescent marker with a coumarin structure. The characteristic properties of this dye include high fluorescence quantum yield, large Stokes-shift, good photostability and low molecular weight. ATTO 343H s very water soluble and the fluorescence efficiency after coupling to biomolecules, such as a protein, is only slightly reduced even at higher degrees of labeling (DOL). ATTO 343H is an anionic dye. After conjugation to a biomolecule, the dye carries a single negative charge. Efficient excitation of fluorescence occurs in the 330 - 365 nm range.
ATTO 343H
ATTO 343H is a hydrophilic short wavelength fluorescent marker with a coumarin structure. The characteristic properties of this dye include high fluorescence quantum yield, large Stokes-shift, good photostability and low molecular weight.
Optical properties
- λ abs = 343 nm
- ε max = 1.9×104 M -1 cm -1
- λ fl = 441 nm
- n fl = 90 %
- τ fl = 4.8 ns
- CF 260 = ε 260 /ε max = 0.19
- CF 280 = ε 280 / ε max = 0.18
ATTO 343H is a hydrophilic short wavelength fluorescent marker with a coumarin structure. The characteristic properties of this dye include high fluorescence quantum yield, large Stokes-shift, good photostability and low molecular weight. ATTO 343H is very water soluble and the fluorescence efficiency after coupling to biomolecules, such as a protein, is only slightly reduced even at higher degrees of labeling (DOL). ATTO 343H is an anionic dye. After conjugation to a biomolecule, the dye carries a single negative charge. Efficient excitation of fluorescence occurs in the 330 - 365 nm range.
ATTO-TEC is a wholly owned subsidiary of Leica Microsystems
