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Invitrogen™ CellTracker™ Fluorescent Probes

CellTracker™ is a fluorescent dye well suited for monitoring cell movement or location. After loading into cells, the dye is well retained, allowing for multigenerational tracking of cellular movements.

Supplier:  Invitrogen™ C2102


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Catalog No. C2102

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Cell movement and location studies require specialized probes that are nontoxic to living cells and well retained, allowing for multigenerational tracking. The CellTracker fluorescent probes are available in a range of fluorescent colors to match instrument lasers and filters, and to accommodate co-staining with antibodies or other cell analysis probes. These dyes are excellent tools for monitoring cell movement, location, proliferation, migration, chemotaxis, and invasion.

Features of the CellTracker dyes include:
Easy to use—remove culture media, add dye, incubate 15-45 minutes, and image cells
Excellent retention—fluorescent signal retention of >72 hours (typically three to six generations)
Ideal tracking dyes—monitor cell movement, location, proliferation, migration, chemotaxis, and invasion
Low cytotoxicity—does not affect viability or proliferation
Cell Versatility– works with cells in suspension and adherent cells

The CellTracker fluorescent probes have been designed to freely pass through cell membranes; however, once inside the cell are transformed into cell-impermeant reaction products. The CellTracker fluorescence probes (except for CellTracker Deep Red) contain a chloromethyl or bromomethyl group that reacts with thiol groups, utilizing a glutathione S-transferase–mediated reaction. In most cells, glutathione levels are high (up to 10 mM) and glutathione transferase is ubiquitous. CellTracker Deep Red probe contains a succinimidyl ester reactive group, which reacts with amine groups present on proteins.

After conversion to impermeant versions, the CellTracker fluorescent probes are well retained in living cells through several generations. The probes are transferred to daughter cells, but are not transferred to adjacent cells in a population. Cells loaded with the CellTracker fluorescent probes display fluorescence for at least 72 hours and exhibit ideal tracking dye properties—they are stable, nontoxic at working concentrations, well retained in cells, and brightly fluorescent at physiological pH. Additionally, several CellTracker fluorescent probes with various excitation and emission spectra are available allowing for multiplexing in fluorescence imaging. The CellTracker dyes are retained with fixation and permeabilization, enabling their use with antibodies for fluorescence immunostaining applications.

Spectral characteristics of the fluorescent CellTracker probes:
• CellTracker Blue CMAC—353/466 nm
• CellTracker Blue CMF2HC—371/464 nm
• CellTracker Blue CMHC—372/470 nm
• CellTracker Violet BMQC—415/516 nm
 CellTracker Green CMFDA—492/517 nm
• CellTracker Green BODIPY™—522/529 nm
 CellTracker Orange CMTMR—541/565 nm
• CellTracker Orange CMR—548/576 nm
• CellTracker Red CMTPX—577/602 nm
• CellTracker Deep Red—630/660 nm

Fluorescent CellTracker reagents include the blue-fluorescent chloromethyl derivatives of amino-, hydroxy-, and difluorohydroxycoumarin (CMAC, CMHC and CMF2HC), the green-fluorescent chloromethyl derivatives of fluorescein diacetate (CMFDA) and a BODIPY™ dye, the orange-fluorescent CMTMR and CMRA, and the red-fluorescent CMTPX. CellTracker Blue CMAC, CMHC, and CMF2HC, CellTracker Violet, the violet-fluorescent bromomethyl derivative of coumarin (BMQC), CellTracker Green BODIPY™, CellTracker Orange CMTMR, and CellTracker Red CMTPX do not require enzymatic cleavage to activate their fluorescence, whereas the green CMFDA and orange CMRA do require enzymatic cleavage. The impermeable reaction products of the chloromethyl or bromomethyl coumarins have excellent retention, strong fluorescence, and relatively uniform cytoplasmic staining, making these derivatives potentially useful for correcting motion artifacts in imaging. CMFDA is colorless and non-fluorescent until cytosolic esterases cleave off the acetates, releasing a brightly fluorescent product.

In addition to bright fluorescence and excellent retention, the CellTracker fluorescent probes do not contribute to cytotoxicity.

Order Info

Shipping Condition: Room Temperature



CellTracker™ Green BODIPY™ Dye, 5 mg
BODIPY™, CellTracker™
Room Temperature
Store in freezer -5°C to -30°C and protect from light.
5 mg
Dry Powder
Cell Tracker Compounds, Cell Labeling Reagents
Other Labels or Dyes




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