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17783 Sigma

Calcein-AM

BioReagent, suitable for fluorescence, ≥96.0% (HPLC)

Synonym: Calcein O,O′-diacetate tetrakis(acetoxymethyl) ester, Calcein acetoxymethyl ester

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Properties

Related Categories Assays and Reagents for Measuring Cytotoxicity, Proliferation and Viability, Biochemicals and Reagents, Calcium Indicators, Cell Culture, Cell Viability,
InChI Key   XKFSBWQWNMZWFA-UHFFFAOYSA-N
product line   BioReagent
assay   ≥96.0% (HPLC)
fluorescence   λex 496 nm; λem 516 nm in 0.1 M Tris pH 8.0, esterase; Ca2+
suitability   suitable for fluorescence
storage temp.   −20°C

Description

Application

Non-fluorescent cell permeable derivative of calcein, becomes fluorescent on hydrolysis. Used as a neutral substrate for multidrug resistance protein, MRP; employed in tumor research.

Calcein-AM has been used in flow cytometry.

General description

Liposomes contain a self-quenching fluorescent dye called calcein. It is a fluorescent dye with excitation and emission wavelengths of 495/515 nm, respectively. It self-quenches at concentrations above 70mM and is commonly used as an indicator of lipid vesicle leakage. The leakage rate is calculated on the basis of the fluorescence increment as the entrapped calcein is leaked out of the liposomal compartment. It is used as a complexometric indicator for titration of calcium ions with EDTA, and for fluorometric determination of calcium.

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
How do I find price and availability?
There are several ways to find pricing and availability for our products.Once you log onto our website, you will find the price and availability displayed on the product detail page.You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 orview local office numbers.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
What is the solubility of Calcein-AM, Product 17783?
Sigma tests the solubility of Product No. 17783 at a concentration of 10 mg/mL in dimethyl sulfoxide (DMSO).
What is the appearance of Calcein-AM, Product No. 17783?
Product No. 17783 can be a film, oil, paste or solid.
What are the spectral properties of Calcein-AM, Product 17783?
The emission maximum for Calcein-AM is 516 nm, with excitation at 496 nm in 0.1M Tris pH 8.0 (following hydrolysis by esterase enzyme, bound to Ca(2+)).
How is Calcein-AM, Product 17783, typically used?
Calcein-AM is a cell-permeant and non-fluorescent compound that is widely used for determining cell viability. In live cells the non-fluorescent calcein-AM is hydrolyzed by intracellular esterases into the strongly green fluorescent anion calcein. The fluorescent calcein is well-retained in the cytoplasm in live cells.
Do the Scienceware® brand polypropylene products contain any leachable material?
Although Bel-Art doesnot specificallytesttheir Scienceware® brand polypropylene products, theyhaveno evidence of any problems with leachable material in the polypropylene.
My question is not addressed here, how can I contact Technical Service for assistance?
Ask a Scientist here.
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Protocols & Articles

Articles

Cell Viability and Proliferation Assays

Assays to measure cellular proliferation, cell viability, and cytotoxicity are commonly used to monitor the response and health of cells in culture after treatment with various stimuli. The proper ch...
Article Based on
BioFiles v6 n5, 17–21
Keywords: Cancer, Cell proliferation, Click chemistry, Enzyme-linked immunosorbent assay, Flow cytometry, Glycolysis, Immunocytochemistry, Immunohistochemistry, Microscopy, Nucleic acid denaturation, Reductions, Solvents, Western blot

Common Cell Culture Problems: Cell Clumping

Cells in suspension may attach to one another and form clumps for a variety of reasons. The most common cause of cell clumping is the presence of free DNA and cell debris in the culture medium, which...
Keywords: Adhesion, Apoptosis, Cell culture, Cell disruption, Culture media, Environmental, Flow cytometry

Common Cell Culture Problems: Cell Death

There is perhaps nothing more frustrating to a cell culturist than removing a dish from the incubator only to find that it’s full of dead cells. Getting to the bottom of the problem can be very chall...
Keywords: Antibiotics, Apoptosis, Autophagy, Buffers, Cell culture, Cell disruption, Cryopreservation, Culture media, Environmental, Enzyme activity, Filtration, Metabolism, Peptide synthesis, Reductions

Common Cell Culture Problems: Cell Line Cross-Contamination and Misidentification

A few years after scientists working at Johns Hopkins established the first human cell line using cervical epithelial cells (HeLa) from cancer patient Henrietta Lacks in the early 1950s, it was obser...
Keywords: Cancer, Cell culture, Cryopreservation, Forensic, Genetic, Phase transitions, Polymerase chain reaction

Common Cell Culture Problems: Contamination

Overview Types of Contamination Common Causes and Prevention of Contaminants    Microbial (bacteria, fungi, yeast)    Mycoplasma    Viral Contamination    Chemical Contamination General Tips and Tech...
Keywords: Antibiotics, Antifungals, Apoptosis, Buffers, Cell attachment, Cell culture, Culture media, Detergents, Eliminations, Environmental, Filtration, Fluorescent microscopy, Gene expression, Indicators, Metabolism, Microscopy, Polymerase chain reaction, Sterilizations

Common Cell Culture Problems: Poor Attachment of Adherent Cells

Optimal cell attachment in vitro requires the interaction of healthy cells with a wide range of cell-derived attachment molecules present in media, serum, and supplements. Cultureware surfaces are fr...
Keywords: Buffers, Cell attachment, Cell culture, Culture media, Decarboxylations, Environmental, Growth factors, Lipid peroxidation, Peroxidations, Precipitation, Reductions, Respiration

Common Cell Culture Problems: Precipitates

When contamination is ruled out, turbidity in cell culture media is often explained by the precipitation of metals, proteins, and other media components. Precipitates can be harmful to cell health, a...
Keywords: Antibiotics, Cell culture, Culture media, Desiccation, Evaporation, Filtration, Microscopy, Nucleic acid denaturation, Precipitation, Purification

Detect, Visualize and Quantify Single Post-Translational Modifications

Duolink® In Situ products enable detection, visualization, and quantification of protein events in tissue and cell samples prepared for microscopy. The in situ PLA® technology, on which these product...
Caleb Hopkins, Product Manager, Sigma® Life Science
Biofiles Vol. 8, No. 11
Keywords: Acetylations, Amplification, Apoptosis, Cancer, Cellular processes, Clinical, Diagnostic, Diseases, Enzyme activity, Gene expression, Glycosylations, Immunohistochemistry, Immunoprecipitation, Microscopy, Nucleic acid hybridization, Peptide synthesis, Phosphorylations, Post translational modifications, Transduction, Ubiquitinations, Western blot

Sensor Dyes

In 1998 R.F. Furchgott, L.J. Ignarro, and F. Murad received the Nobel Prize in Physiology and Medicine for their discoveries concerning nitric oxide as a signaling molecule in the cardiovascular syst...
Monika Baeumle
BioFiles 2011, 6.3, 23.
Keywords: Applications, Biochemistry, Biological processes, Cancer, Cardiovascular, Central Nervous System, Diseases, Extinction coefficient, Indicators, Inflammation, Methods, Microscopy, Neurotransmission, Sol-gel, Type

Protocols

Common Cell Culture Problems: Poor Cell Growth

Ensuring adequate cell growth is a critical part of collecting accurate data with cell cultures. Cells can be cultured in suspension, or as a monolayer that attaches to cultureware, such as a flask, ...
Keywords: Antibiotics, Apoptosis, Buffers, Cell attachment, Cell culture, Condensations, Cryopreservation, Culture media, Evaporation, Filtration, Microscopy, Phase transitions, Reductions

Peer-Reviewed Papers
15

References

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