Abberior STAR ORANGE was developed for STED and confocal microscopy in the orange spectral region. Abberior STAR ORANGE is highly photostable and bright orange fluorescent dye. The dye works extremely well with Abberior Instruments STEDYCON, Expert Line and Facility Line microscopes. It can be effectively excited with excitation light between 550 - 610 nm. Abberior STAR ORANGE can substitute dyes like ATTO® 594 or Alexa Fluor® 594. For STED microscopy, Abberior STAR ORANGE can be most efficiently used with a STED Laser wavelength between 750 - 800 nm. Abberior STAR ORANGE is the ideal partner for Abberior STAR RED to obtain stunning 2 Color STED results. Best results are obtained with freshly prepared samples.