Appearance dark red solid | ||
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New fuchsine, (from German "fuchs", fox) is an organic compound with the formula [(CH3N(H)CH3C6H3)3C]Cl. It is a magenta-colored solid that is used as a dye. It is one of the four components of basic fuchsine, and one of the two that are available as single dyes. The other is pararosaniline.
It is prepared by condensation of N-methyltoluidine with xylidene in the presence of hydrochloric acid.
Use as dye and stain
It is used to dye polyacrylonitrile, paper, and leather.
New fuchsine can be used for staining acid fast organism, e.g. by Ziehl-Neelsen stain, and for making Schiff's reagent. As a primary amine, the dye can be diazotized in the laboratory, and the resulting diazonium salt used as a trapping agent in enzyme histochemistry.
References
New fuchsine Wikipedia(Text) CC BY-SA