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Rhodamine 101 inner salt is a bright fluorescent dye with excitation and emission maxima at 565 nm and 595 nm, respectively. It is utilized in various biological applications, including fluorescence microscopy, flow cytometry, fluorescence correlation spectroscopy, and ELISA.

HMSiR680-Me is a bright and stable fluorescent dye designed for multicolor, time-lapse, and super-resolution imaging to observe acidic organelles. It is suitable for overnight time-lapse experiments and rapid continuous super-resolution microscopy imaging, maintaining imaging quality for at least 1000 frames. HMSiR680-Me can also be used with silicon rhodamine dyes in multiplexed super-resolution microscopy experiments, enabling the visualization of interactions between the mitochondrial inner membrane and lysosomes using a single excitation laser and simultaneous depletion technique.

Patent Blue V (Acid blue 1), a biological dye, serves as an intraocular stain in retinectomy—surgical removal of the inner limiting membrane (ILM). Its use facilitates the complete excision of premembrane structures in vitreoretinal surgeries. Spectral analysis reveals that Patent Blue V absorbs strongly below 450 nm and above 600 nm, exhibiting a blue-green hue. Additionally, it functions as a tracer in lymphangiography to guide the surgical removal of cancerous lymph nodes [1][2].

1-Stearoyl-2-arachidonoyl-sn-glycero-3-phosphorylethanolamine (SAPE) is a natural phospholipid found in mitochondrial inner membranes, involved in lipid signaling.

DiSBAC10, a voltage-sensitive fluorescent probe, facilitates cell membrane electrical activity investigation in FRET assays. At rest, it populates the membrane's outer leaflet, accepting photons from excited fluorescein-labeled proteins and emitting them at higher wavelengths. Upon cell depolarization, DiSBAC10 quickly translocates to the inner leaflet, increasing fluorophore separation and diminishing the FRET signal.

Mito Flipper-TR 27, a fluorescent probe, accumulates in mitochondria to measure membrane tension in living cells. Its accumulation is driven by the strong internal negative membrane potential, which propels the permanently hydrophobic triphenylphosphine cation across the inner membrane and prevents its release, thereby facilitating mitochondrial tracking [1].