Cy®5 dye is a bright, far-red-fluorescent dye with excitation ideally suited for the 633 nm or 647 nm laser lines. A significant advantage to using long wavelength dyes such as Cy®5 dye or Alexa Fluor® 647 dye over other fluorophores is the low autofluorescence of biological specimens in this region of the spectrum.
The Cy®5 fluorophore is also the basis for the lipophilic neuronal and long-term DiD cell tracing reagents, which append alkyl tails (≥12 carbons) onto the core fluorophore.
![]() |
Filter Type | Fluoresence Filter Set | ||
Coating Type | Hard Coated | ||
Part Number | Cy5.0-BP01A | ||
Individual Filter | Excitation Filter | Emission Filter | Dichroic Mirror |
BP-EX11A | BP-EM11A | BP-DM11A | |
CWL/FWHM | 628/40nm | 692/40nm | 660nm |
Angle of Incidence | 0±5° | 0±5° | 45° |
Transmission | >80% | >80% | >90% |
Size(mounted) | Ø25mm x 5mm | Ø25mm x 3.5mm | Ø25.2mm x 35.6mm x 1.05mm |
Wavelength Tolerance | ±3nm | ||
Blocking | OD>5 | ||
Scratch-Dig | 60-40 | ||
Substrate | Fused Silica, B270 | ||
Compatible Microscopes | Most common Nikon, Olympus, and Zeiss Microscopes | ||
Fluorescence Image Gallery | Click here or contact us to get |