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abberior STAR 550


Item number
ST550

Description

abberior STAR 550 was developed for STED and confocal microscopy in the green-orange spectral region. Characteristic features of this dye are its exceptional photostability and brightness. abberior STAR 550 can be very effectively excited effectively excited with a 561 nm laser. For STED microscopy, abberior STAR 550 can be used most efficiently with a STED laser wavelength between 650 – 775 nm. In combination with abberior STAR BLUE, abberior STAR ORANGE, and abberior STAR RED, abberior STAR 550 enables versatile 4-color imaging across a broad spectral range. Best results are obtained with freshly prepared samples.

Properties

Absorption
Absorption
552
Extinction Coefficient
Extinction Coefficient
85000
Emission
Emission
574
Quantum Efficiency
Quantum Efficiency
44
STED min.
STED min.
650
STED max.
STED max.
775
Fluorescence Lifetime
Fluorescence Lifetime
3.8
Correction Factor 260
Correction Factor 260
0.3
Correction Factor 280
Correction Factor 280
0.2
Charge
Charge
0