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Erythrosine B (C.I. 45430) for microscopy Water-soluble plasma stain (0.5-2.0 %), used like eosin Y, e.g. for hematoxylin-eosin (H&E) staining.
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Janus green B (C.I. 11050) for microscopy Vital dye for staining of leucocytes and for visualising mitochondria. Besides Janus green is used as counter stain during the modified Ziehl-Neelsen staining.
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Toluidine blue O (C. I. 52040) for microscopy Basic water-soluble nuclear dye, used in solutions of 0.03-0.1 %. In histology e.g. used for staining of neurohistological specimens, in botany for detection of plant cells (solutions of 0.03-0.1 %).
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Alizarin red S (C.I. 58005) pure Dye for vital staining, e.g. staining of mineralized sites in bone tissue.
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Tetrazolium blue chloride ≥95 %, for biochemistry Application of tetrazolium blue chloride: histochemical detection of succinate dehydrogenase and NAD-linked enzymes, vital staining for detection of living cells through the reduction of tetrazolium to formazan, biochemical assays of glucose oxidase, analysis of various corticosteroids.
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Acridine orange (C.I. 46005) for microscopy Soluble in water and ethanol.
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2,3,5-Triphenyltetrazolium chloride ≥98 %, p.a. Used in biochemistry to measure the activity of dehydrogenases and in vital staining to detect living cells through the reduction of tetrazolium to formazan via the dehydrogenases of the respiratory chain. Triphenyltetrazolium chloride can be used to measure the bacterial content of liquids in food analysis and/or to determine seed vitality. In microbiology it is used to distinguish between coliform and noncoliform bacteria, whereas in thin layer chromatography it is ideal as a spray reagent on reducing sugar, corticosteroids and other reducing agents.
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Propidiumiodide ≥95 %, p.a. Fluorescent dye with specific DNA-binding capacity. Like ethidium bromide it intercalates between base pair stacks of DNA. Used for detection of mycoplasms in cell cultures, for quantitative DNA measurement and for chromosome counter staining. In Annexin staining it is used for counter staining of the nuclei (detection of apoptotic cells).
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Erythrosine B (C.I. 45430) for microscopy Water-soluble plasma stain (0.5-2.0 %), used like eosin Y, e.g. for hematoxylin-eosin (H&E) staining.
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