Description
5(6)-Carboxyfluorescein diacetate is a fluorescein-based diacetate ester offered at a minimum purity of 95 % for biochemical and cell-oriented laboratory applications. It is registered under CAS number 124387-19-5, with the empirical formula C₂₅H₁₆O₉ and a molar mass of 460,39 g/mol. The diacetate form is widely recognized as a membrane-permeable precursor that can be converted intracellularly to fluorescent carboxyfluorescein species in viability, esterase, and related assay contexts. Researchers value the defined molecular weight and assay level when preparing stock solutions and documenting fluorescent probes. Product from manufacturer Carl ROTH fits specialty biochemical catalogues focused on fluorescent dyes and reporter molecules. Applications span fluorescence microscopy workflows, flow-cytometry related staining concepts, and general studies of cellular esterase activity where carboxyfluorescein derivatives are employed. Clear CAS, formula, and purity data facilitate reagent tracking in regulated or well-documented research settings. This compact format is practical for laboratories that need reliable fluorescent biochemicals for exploratory and routine experimental work.
This article is part of Fluorescent dyes & labels, in Dyes, stains & indicators.
Key features
- Colour: white
- Form: powder to crystalline powder
- Assay: ≥95 %
- CAS number: 124387-19-5
- Pack sizes: 250 mg, 500 mg, 1 g, 2 g
- Purity: min. 95 %
- Empirical formula: C₂₅H₁₆O₉
- Molar mass: 460,39 g/mol
- Storage temperature: +2 to +8 °C
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about 5(6)-carboxyfluorescein diacetate, min. 95 %, 250 mg
What is this article?
5(6)-carboxyfluorescein diacetate, min. 95 %, 250 mg is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Fluorescent dyes & labels, inside Dyes, stains & indicators, in Lab chemicals.
A fluorescent dye absorbs at one wavelength and emits at a longer one. As a label it is attached to a protein, a nucleic acid or a cell. Excitation and emission maxima, and the reactive group if it must conjugate, are the specification. The colour name does not tell you the wavelengths.
A dye or a stain binds, or changes colour, so that something invisible becomes visible. An indicator changes at a pH or a redox point. A fluorescent dye absorbs one wavelength and emits another, which is how a microscope or a plate reader picks it out. The excitation and emission, or the transition interval, are the specification. The colour name on the label is not. Structures are on PubChem under IUPAC names. Methods are in the PubMed literature.
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The category is Dyes, stains & indicators. The sub-category is Fluorescent dyes & labels. The catalogue is Lab chemicals.
Shelves beside this one are Microscopy stains & staining solutions and Dyes & pigments.
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