1) Absorption indicator 2) Dyestuff 3) Fluoresceine 4) Fluorescent dye 5) Resorcinolphthalein
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1) Bromeosin 2) Eosin 3) Fluoresceine 4) Resorcinolphthalein
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Fluorescein (n or n) is a synthetic organic compound available as a dark orange/red powder slightly soluble in water and alcohol. It is widely used as a fluorescent tracer for many applications. Fluorescein is a fluorophore commonly used in microscopy, in a type of dye laser as the gain medium, in forensics and serology to detect latent blood stai...
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• (n.) A yellowish red, crystalline substance, C20H12O5, produced by heating together phthalic anhydride and resorcin; -- so called, from the very brilliant yellowish green fluorescence of its alkaline solutions. It has acid properties, and its salts of the alkalies are known to the trade under the name of uranin.Fluorescein: words in the defi...
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organic compound of molecular formula C20H12O5 that has wide use as a synthetic colouring agent. It is prepared by heating phthalic anhydride and ... [2 related articles]
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A synthetic dye made by fusing resorcinol with phthalic anhydride (see acid anhydride) and zinc chloride catalyst. A red crystalline solid, fluorescein dissolves in alkalis to give a deep red solution showing very intense yellow-green fluorescence, visible at very low concentrations. It is used as a...
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<chemical> Fluorophore commonly used in microscopy. ... Fluorescein di acetate can be used as a vital stain or can be conjugated to proteins (particularly antibodies) using isothiocyanate. ... Excitation is at 365nm and the emitted light is green yellow (450-490nm). The emission spectrum is pH sensitive and fluorescein can therefore be used t...
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(fldbobr-res´ēn) a fluorescing dye; the sodium salt is used as a contrast medium in retinal angiography and as a diagnostic aid for revealing corneal lesions and fitting contact lenses.
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A fluorescent substance adsorbed to antibodies in order to facilitate their detection and location on a tissue.
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Fluorophore commonly used in microscopy. Fluorescein di-acetate can be used as a vital stain, or can be conjugated to proteins (particularly antibodies) using isothiocyanate. Excitation is at 365nm, and the emitted light is green-yellow (450-490nm). The emission spectrum is pH-sensitive and fluorescein can therefore be used to measure pH in intracellular compartments.
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Flu`o·res'ce·in noun (Chemistry) A yellowish red, crystalline substance, C
20 H
12 O
5 , produced by heating together phthalic anhydride and resorcin; -- so called, from the very brilliant yellowish green
fluorescence of its alkaline solutions. It has acid ...
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http://www.encyclo.co.uk/webster/F/49
Type: Term Pronunciation: flōr-es′ē-in Definitions: 1. An orange-red crystalline powder that yields a bright green fluorescence in solution and is reduced to fluorescin; a nontoxic, water-soluble indicator used diagnostically to trace water flow. Synonyms: resorcinol phthalic anhydride, resorcinolphthalein
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Fluorescein is an organic dye compound obtained by heating together pthalic anhydride and resorcinol. It is a red powder insoluble in water, but it dissolves in alcohol and also in alkalis, giving a brilliant green fluorescence.
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A fluorane dye used for, among other things, identifying ulcers on the cornea.
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[
n] - a yellow dye that is visible even when highly diluted
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an orange-red, crystalline, water-insoluble solid, CHO, that in alkaline solutions produces an orange color and an intense green fluorescence: used to trace subterranean waters and in dyes.
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