Spectral properties: Ex max = 647nm/Em max = 666nm
Cyanine dyes exhibit large molar absorptivities (~150,000-250,000 M-1cm-1) and moderate quantum yields resulting in extremely bright fluorescence signals. Therefore, cyanines have proven useful in several fields including photography, biology, laser technology and analytical chemistry.
MTTI offers a series of unique lipophilic cyanine dyes which may be useful for biophysical studies of lipid bilayers of cells or other artifical membranes. In particular, these compounds may be useful as molecular probes of membrane potential, for labeling lipid bilayers and for labeling hydrohobic pockets of lipo-proteins.