fuchsin


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fuchsin

(fyo͞ok`sĭn) or

magenta

(məjĕn`tə), bright red dyestuff consisting of the mixed hydrochlorides or acetates of rosaniline and pararosaniline. It is composed of small crystals possessing a brilliant green sheen; when dissolved they produce a red solution, which dyes animal fibers directly and vegetable fibers after mordanting. The solution is used in the textile and leather industries and as a stain in biology.

fuchsin

[′fyük·sən]
(organic chemistry)
C20H19N3 Brownish-red crystals, used as a dye or in the commercial preparation of other dyes, and as an antifungal drug. Also known as magenta; rosaniline.
References in periodicals archive ?
After this period, the samples were washed in distilled water and ethanol 50%, and with a brush the two epidemial surfaces were separated, stained with basic fuchsin (Roeser, 1962), and mounted in glycerine jelly.
ZN staining (4): Smears were flooded with filtered 1% carbol fuchsin (CF) and heated until they were steamed and left to steam for 5 min.
Thus, the data indicates that gourd peel peroxidase could be a potential source for developing an inexpensive and efficient method for the treatment of recalcitrant fuchsin acid and crystal violet dyes that are potentially toxic.
Smears were prepared from all positive stool samples and stained separately with malachite green, methylene blue, crystal violet, and carbol fuchsin.
5-20 mg/L) and higher (100-1000 mg/L) range of feed concentration of basic fuchsin and methyl violet dyes were prepared in distilled water at different pH and also in distilled water with varied molar concentration of sodium chloride and calcium chloride.
The original method of Masson (1928) was initially thought for carcinoids analysis, integrating four dyes (Regaud's hematoxylin, acid fuchsin with Ponceau de xylidine and aniline blue) which have been repeatedly combined on later modifications.
2]S, urease production, sensitivity to thionine and basic fuchsin, and agglutination with specific antiserum).
The disclosing tablets of bacterial plaque used were composed of alkaline fuchsin 2%, sodium saccharin, lactose, sodium cyclamate and excipients, whose function is to stain the bacterial plaque on the teeth apparently clean, with a contrasting color (bright red), facilitating to localize the bacterial plaque on the teeth surface.
It is an acid-fast bacillus and retains carbol fuchsin even when it is decolorized by acid alcohol (because of the presence of the long chain fatty acids called mycolic acids in the cell wall).
It is stained with 1% carbol fuchsin and heated until steam starts rising, allowed to stand for 5 min and then rinsed with water.