5-ROX (5-Carboxy-X-rhodamine), a rhodamine dye, exhibits strong fluorescence in aqueous buffer with an excitation wavelength (λexit) of 580 nm (ε = 3.6×10^4 (M·cm)) and an emission wavelength (λemit) of 604 nm (ϕ = 0.94).
2-Di-1-ASP is a mono-stryryl dye and widely used as mitochondrial stain and groove-binding fluorescent probes for double-stranded DNA. It has selective for G-quadruplex (G4) and double-stranded DNA.
Dihydrofluorescein diacetate (Diacetyldihydrofluorescein) is a fluorescent probe for measuring oxidative stress in cell-free systems and cellular models.
BDP 581 591 NHS ester, a borondipyrromethene dye (Ex=585 nm, Em=594 nm), exhibits a relatively long fluorescence lifetime and significant two-photon excitation cross-section. This compound is applicable in fluorescence polarization analysis, interacts with reactive oxygen species (ROS) to modify fluorescence, and, as an NHS ester derivative, binds to the primary and secondary amine groups of proteins, peptides, and various molecules. Storage instructions highlight the importance of protecting it from light.
Ethidium monoazide bromide, a fluorescent dye that intercalates with DNA, selectively penetrates bacteria possessing compromised membranes. Upon photoactivation, it forms covalent bonds with DNA, enabling it to exclusively stain dead cells [1].