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Calcein, also known as fluorexon, fluorescein complex, is a fluorescent dye with an excitation and emission wavelengths of 495/515nm, respectively

They are commonly used as a tracer agents. The dyes are membrane-impermeant and can be loaded into cells by microinjection or scrape loading.

Carboxyfluorescein diacetate succinimidyl ester (CFDA-SE) is a cell permeable dye generally used in animal cell proliferation research.

Detailed protocols are now available that can be used to label lymphocytes (and other cell types) with a high degree of reliability and precision.

Fluorone is a heterocyclic chemical compound. It forms the core structure for various chemicals, most notably fluorone dyes,[1] including erythrosine.

Fluorone is a heterocyclic chemical compound. It forms the core structure for various chemicals, most notably fluorone dyes,[1] including erythrosine.

Eosin B is a form of eosin.

Eosin Y is a form of eosin.

Erythrosine, also known as Red No. 3, is an organoiodine compound, specifically a derivative of fluorone

Fluorescein is a synthetic organic compound available as a dark orange/red powder soluble in water and alcohol. It is widely used as a fluorescent tra

Fluorone is a heterocyclic chemical compound. It forms the core structure for various chemicals, most notably fluorone dyes,[1] including erythrosine.

Fluorescein isothiocyanate (FITC) is a derivative of fluorescein used in wide-ranging applications including flow cytometry

It is a clear, deep and luminescent yellow pigment. Its color is deeper than gamboge but less pure than cadmium yellow.

Merbromin is also used as a biological dye to mark tissue margins and as a metal dye in industrial dye penetrant inspection to detect metal fractures.