Product Name: SeTau-660-NHS

Product Number:
K9-4159
Target Group:
NH2
Excitation Light Sources:
Medium 1:
PB 7.4
λAb max. [nm]:
663
ε [M–1 cm–1]:
240000
λEm max. [nm]:
694
QY [%]:
50
FLT [ns]:
3.36
Medium 2:
IgG, D/P = 1
λAb max. [nm]:
663
ε [M–1 cm–1]:
240000
λEm max. [nm]:
694
QY [%]:
56
FLT [ns]:
3.5
Medium 3:
IgG, D/P = 3
λAb max. [nm]:
663
ε [M–1 cm–1]:
240000
λEm max. [nm]:
694
QY [%]:
34
FLT [ns]:
2.47
Medium 4:
IgG, D/P = 4
λAb max. [nm]:
663
ε [M–1 cm–1]:
240000
λEm max. [nm]:
694
QY [%]:
27
FLT [ns]:
2.23
Specs Sheet:
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Description

  • Extremely bright, water-soluble, amine-reactive label containing one NHS-ester group. The ideal label for proteins and other amino-modified biomolecules including oligonucleotides.

 

Advantages

  • Perfectly suited for excitation with 640, 650, and 670-nm diode lasers
  • Low quenching tendency at high dye-to-protein ratios compared to other labels e.g. Cy5.5
  • Stokes’shift of ~31 nm (larger than for Cy5.5 or Alexa 660).
  • Considerably higher photostability compared to fluorescein or cyanine dyes (e.g. Cy5 or Cy5.5)
  • High chemical stability against oxidation with peroxides or other oxygen species
  • Longer fluorescence lifetime compared to Cy5.5 (2 ns) or Alexa 660 (0.37 ns) or Alexa 680 (0.36 ns)
  • Extremely bright label: most sensitive organic fluorescent label for proteins currently on the market for the 647-nm Kr-ion and 670 laser lines