"SIGMA ALDRICH MICROSCOPY"

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Erioglaucine disodium salt has been used as a coloring dye to determine the feeding behaviour in Drosophila. It has been used as a coloring dye for determining the number of egg masses of Meloidogyne incognita.

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Immersion oil has been used in epifluorescent microscopy and cell identification.

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Ponceau BS has been used in Masson′s trichrome stain for the staining of collagen. It has also been used for eosinophil staining.

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Disperse blue 1 is a grey to black powder. Disperse dyes are known to be insoluble in water and are applied to the substrate as suspensions or dispersions by dissolving in hydrophobic regions of the polymers making up the fiber.

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(2,5-Dimethoxyphenyl)acetyl chloride 99%, Sigma-Aldrich®

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Fluorescent molecular rotor

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Acetaldehyde 2,4-dinitrophenylhydrazone analytical standard, for environmental analysis, Sigma-Aldrich®

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Zinquin ethyl ester. ≥95% (HPLC), solid (2-Methyl-8-[(4-methylphenyl)sulfonylamino]-6-(ethyloxycarbonylmethyloxy)quinoline)

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Spurr resin is a hydrophobic resin. It is less viscous than epon mixtures and is easier to dispense. The low viscosity of the resin contributes to its penetration in tissue, mineral and dense structures. A low viscosity of 60 cps also allows easy penetration into a variety of difficult materials.

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Application in high throughput screening.

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5(6)-Carboxyfluorescein 90% (dye content), Sigma-Aldrich®

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Phenol Red is a phenolsulfonphthalein compound. It is present as a sulfonated hydroxyquinone in weakly acidic aqueous solutions. In alkaline solutions, the dye forms a hydrophilic dianion (a small, red anion and has a larger conjugated system than the yellow hydroxyquinone).

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2-(3-Aminophenylsulphonyl)ethanol hydrochloride 97%, Sigma-Aldrich®

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Standard stain for microscopy. It may be also be used as a reference standard in the determination of azocarmine G in food products and beverages using high performance liquid chromatography coupled with diode array detector (HPLC-DAD).

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Fura 2-AM (Fura 2) is a calcium-specific ratio-metric fluorescent dye. It is also known as acetoxy-methyl-ester. In response to calcium ions, ratio metric dyes like Fura 2 changes their respective excitation or emission spectra. The intracellular calcium concentration is determined by the fluorescence emission ratio or excitation at distinct wavelengths. Fura 2 has an emission peak at 505 nm, and the excitation peak ranges between 340 to 380 nm and is the preferred calcium indicator.

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Naphthalene black 10B (naphthol blue black, acid black 1) ~50% (dye content), Sigma-Aldrich®