Lysosome Dyes

DQ-BSA-Red is a bovine serum albumin labeled with a red fluorescent dye that can be used to detect lysosomal activity. The excitation wavelength and emission wavelength of DQ-BSA-Red are 590 nm and 620 nm, respectively. The BSA molecule in DQ-BSA-Red is labeled with high concentration of red fluorescent dye in multiple sites, which shows high fluorescence self-inhibition. Once DQ-BSA-RED enters the lysosome, DQ-BSA is cleaved by lysosomal proteases, resulting in unquenched and released fluorescent fragments, emitting bright fluorescence. Inactivated lysosomes are unable to degrade the BSA protein and thus have a lower or even no fluorescent signal.

LysoTracker Red is a Red fluorescently labeled lysosomal probe with a maximum excitation/emission wavelength of 577/590 nm. The structure is composed of a fluorescein group and linked weak bases, which can freely cross the cell membrane and gather on spherical organelles. It is suitable for observing the internal biosynthesis and related pathogenesis of lysosomes.

NBD-PE is an effective lipid fluorescent probe (Excitation/Emission: 465/535 nm; Color: Green). NBD-PE offers a wide array of applications in membrane and cell biology.

PDMPO, a lysosome pH indicator, is an excellent fluorescent acidotropic reagent for fluorescence imaging. PDMPO is a potent tool with which to study acidic organelles of live cells. PDMPO exhibits pH-dependent dual-excitation and dual-emission spectral peaks. PDMPO produces a blue fluorescence in weakly acidic organelles and shifts to yellow in more acidic lysosomes. (Abs=329 nm; Em=440/540 nm).

Green DND-26 is a green fluorescently labeled lysosomal probe with a maximum excitation/emission wavelength of 504/511 nm. The structure is composed of a fluorescein group and linked weak bases, which can freely cross the cell membrane and generally gather on spherical organelles. Green DND-26 is suitable for observing the internal biosynthesis and related pathogenesis of lysosomes.

LysoTracker Yellow HCK 123 is a potent yellow membrane-permeable fluorescent probe. LysoTracker Yellow HCK 123 is a weakly basic amine that selectively accumulates in cellular compartments with low luminal pH.

FLCS1 is a BODIPY-based Fluorescent probe and selective copper (I) ion binder (λ_ex = 630 nm, λ_emis = 660 nm). Binding of FLCS1 to copper (I) ions induces fluorescence turn-on. Addition of copper (I) to a methanolic solution of FLCS1 causes a slight red shift (4 nm) in the maximum absorption wavelength (λ_max) in the UV-Vis spectrum.

Ratio-Coppersensor-1 is a selective ratiometric copper ion Fluorescent reporter (excitation wavelength: 480 nm; emission peak central wavelengths at 505 nm and 570 nm, respectively). Ratio-Coppersensor-1 exhibits extremely high selectivity for Cu⁺ at cellular concentrations, outperforming other competing metal ions, and shows an approximately 20-fold change in fluorescence ratio upon Cu⁺ binding. Ratio-Coppersensor-1 is capable of reflecting changes in Cu levels.

DHUCu-1 is a lysosome-targeted NIR divalent copper ion probe with high water solubility. DHUCu-1 serves as a tool for investigating the physiological functions of Cu²⁺ and related diseases, such as Menke syndrome, Wilson's disease, and Alzheimer's disease.

Lyso-Cu (II) is a lysosome-targeted divalent copper ion probe. Lyso-Cu (II) is applicable to the research of Wilson's disease, Menkes disease and Alzheimer's disease.

Green DND-26 (solution) is a green fluorescently labeled lysosomal probe with a maximum excitation/emission wavelength of 504/511 nm. The structure is composed of a fluorescein group and linked weak bases, which can freely cross the cell membrane and generally gather on spherical organelles. Green DND-26 is suitable for observing the internal biosynthesis and related pathogenesis of lysosomes.
Solvent and concentration: DMSO: 2 mM