MitoSOX Red is a fluorescent dye serving as a mitochondria-targeted fluorescent probe for superoxide, with cell membrane permeability and specificity. Upon oxidation, MitoSOX Red subsequently binds to nucleic acids within mitochondria/nuclei, producing intense red fluorescence, and is employed for detecting mitochondrial superoxide in live cells.

ER-Tracker Green (ERTG) is a cell permeable live cell stain for live cell imaging.ER-Tracker Green has an excitation wavelength of 504 nm and an emission wavelength of 511 nm.

Nile Red ((Nile Blue A oxazone)) is a lipophilic, environment-sensitive fluorescent dye. Highly hydrophobic, with fluorescence significantly enhanced in lipid-rich environments. Commonly used for specific staining of intracellular lipid droplets, with excitation/emission wavelengths of 559/635 nm.

DiI (DiIC18(3)) is a lipophilic membrane dye commonly used as a long-term tracer for neurons and other cells. DiI fluoresces very weakly before it enters the cell membrane, and only after it enters the cell membrane can it be excited to emit a strong orange-red fluorescence (λex=549 nm, λem=565 nm).

Rhodamine 123 is a fluorescent dye (λex=503 nm, λem=527 nm).

LysoTracker Red (LysoTracker Red DND-99) is a fluorescent probe compound for lysosomal capture, a transport substrate for P-glycoprotein, with a maximum excitation/emission wavelength of 577/590 nm.LysoTracker Red can be used for the long-term tracking of acidic vesicles.

BODIPY 505/515 is a lipophilic fluorescent probe that localises to intracellular liposomes and has been used to label lipid droplets.BODIPY 505/515 has been used in electron microscopy, epifluorescence microscopy, confocal microscopy, and flow cytometry applications for various algal species.

MKT-077 (FJ-776) is a cationic rhodacyanine dye that demonstrates antiproliferative activity against cancer cell lines (EC50s: 1.4-2.2 μM in vitro) through its ability to inhibit members of the Hsp70 family of molecular chaperones.

TMRE (Tetramethylrhodamine ethyl ester perchlorate) is a mitochondria specific dye (λex: 550 nm, λem: 575 nm).

Rhodamine 800 is a near-infrared fluorescent dye.

Rhodamine 6G (Basic Red 1) is a rhodamine analog useful in Pgp efflux assays. It can be widely used in characterizing the kinetics of MRP1- mediated efflux as a laser dye and potential mitochondrial probe.

Neutral red is a vital dye, is used as an indicator and biological stain.

Acridine Orange 10-Nonyl Bromide is a mitochondrial fluorescent probe that binds to cardiolipin in the inner mitochondrial membrane, dependent on the mitochondrial membrane potential, with an excitation wavelength of 490 nm and an emission wavelength of 510–525 nm.

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.

MitoPerOx is a ratiometric fluorescent probe that can be used to assess changes in lipid peroxidation within mitochondria. It is composed of a BODIPY fluorophore conjugated via a dienyl link to a triphenylphosphonium cation component that drives its accumulation in mitochondria. MitoPerOx displays an excitation maximum of 495 nm and exhibits a shift in emission maxima from 590 to 520 nm upon mitochondrial lipid peroxidation, enabling determination of ratiometric measurements of lipid peroxidation in live cells.

Rhod-2 AM is a fluorescent probe of the mitochondrion with λex of 552 nm and λem of 581 nm.

Endoplasmic reticulum dye 1 is a highly effective live cell imaging agent used to detect exocytotic events at the plasma membrane. The compound exhibits minimal cytotoxicity and is resistant to photobleaching, making it ideal for visualizing short- and long-term processes.

FIM-1, a fluorescent probe for protein kinase C (PKC), facilitates mitochondrial staining and serves as an ATP-competitive inhibitor at the catalytic site of PKC, effectively inhibiting its activity [1].

HKSOX-1m (5/6-mixture) is a mitochondria-targeting O2 fluorescent probe with excitation/emission wavelengths of 509/534 nm (green), offering exceptional selectivity and sensitivity for O2 across a wide pH range and in the presence of strong oxidants and prevalent reductants within cells.

Rhodamine 700 is an organic perchlorate salt and has a role as a fluorochrome.

MitoMark Green I is a green fluorescent mitochondrial stain [λmax ~ 490/516 nm].

HKSOX-1m hydrobromide (5/6-mixture), a mitochondria-targeted O2•− fluorescent probe (Ex/Em=509/534nm; green), demonstrates exceptional selectivity and sensitivity for O2•− across a wide pH spectrum, robustly distinguishing it from strong oxidants and prevalent cellular reductants [1].

Mito-TRFS is the first off-on probe for imaging the mitochondrial thioredoxin reductase (TrxR2) in live cells.

TMRM is a cell-permeant cationic lipophilic red fluorescent dye (λex: 530 nm, λem: 592 nm).