ATTO 542 Biotin Fluorescent Label 5 mg
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Product No. AD-542-75
ATTO 542 is a new fluorescent label related to ATTO 532 .
ATTO-TEC is a wholly owned subsidiary of Leica Microsystems
Optical properties
- λ abs = 542 nm
- ε max = 1.2×105 M -1 cm -1
- λ fl = 562 nm
- n fl = 93 %
- τ fl = 3.7 ns
- CF 260 = ε 260 /ε max = 0.18
- CF 280 = ε 280 / ε max = 0.08
ATTO 542 is a new fluorescent label related to ATTO 532.
The new dye is very hydrophilic and shows excellent water solubility. Characteristic features of the label are strong absorption and high photo-stability. The dye shows a very high fluorescence quantum yield even after coupling to a biomolecule. ATTO 542 is very suitable for oligonucleotide labeling, single-molecule detection applications and high-resolution microscopy (PALM, dSTORM, STED etc.). Additionally the dye strongly qualifies to be applied in flow cytometry (FACS), fluorescence in-situ hybridization (FISH and many more.
After coupling to a substrate the dye carries a net electrical charge of - 3. The fluorescence is excited most efficiently in the range 520 - 555 nm.
Characteristic properties of our fluorescent dyes
- Strong absorption (high extinction coefficient)
- High fluorescence quantum yield
- High photostability