abberior STAR RED, goat anti-rabbit IgG, 500 µl (1 mg/ml)

abberior STAR RED is a well-known red dye, named also KK114 in literature. It was developed for STED and confocal imaging in the red spectral region. It shows an exceptional brightness and low background, delivering stunning STED images. abberior STAR RED can be excited with lasers at wavelength between 630 - 650 nm. For STED, a depletion wavelength around 750 - 800 nm is recommended.abberior STAR RED can substitute dyes like ATTO® 647N, Alexa Fluor® 647, or Cy5®. Our abberior STAR RED is the ideal partner for abberior STAR ORANGE or abberior STAR 580 to obtain optimal 2 color STED results. Best results are obtained with freshly prepared samples.

Organic fluorescent dye conjugated with polyclonal secondary anti-rabbit IgG antibody, host: goat, concentration 1 mg/ml.

Other Properties
Absorption (λex [nm]): 638
Extinction Coefficient (Ɛmax [M-1cm-1]): 120000
Emission (λem [nm]): 655
Quantum Efficiency (ηfl [%]): 90
STED min. (λSTED min [nm]): 750
STED max. (λSTED max [nm]): 800
Fluorescence Lifetime (τfl [ns]): 3.4
Correction Factor 260: 0.16
Correction Factor 280: 0.32
Charge (Δq): -1
Photophysical properties were measured for carboxylic acid in PBS pH 7.4.

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