STAR RED
STAR RED (Ex-Max 637 nm/Em-Max 660 nm)
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.
Excitation & emission spectra
Key facts
- Excitation maximum
- 637 nm
- Emission maximum
- 660 nm
- Optimal laser line
- 638
- Relative brightness
- 4 of 5
- Extinction coefficient
- 120000
- Commercial antibodies
- 24 from 1 supplier
STAR RED has an excitation maximum at 637 nm and an emission maximum at 660 nm, a Stokes shift of 23 nm. Its extinction coefficient is 120000 M⁻¹cm⁻¹. It is optimally excited by the 638 laser line.
Frequently asked questions
- What is STAR RED?
- 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.
- What laser excites STAR RED?
- STAR RED is optimally excited by the 638 laser line. Its excitation maximum is 637 nm.
- How bright is STAR RED?
- STAR RED has a relative brightness of 4 out of 5.
- How many antibodies are available conjugated to STAR RED?
- FluoroFinder tracks 24 commercially available STAR RED conjugates, searchable by target, clone, host and application.