A deep red synthetic dye used as a biological stain and disinfectant.
A chloride of rosaniline; chemical formula: C20H20N3Cl.
Serial 3 m sections were stained with 1% aqueous acid fuchsin, and counter-stained with 0.05% toluidine blue....
Sections were also stained with Luna's aldehyde fuchsin as well as with orcein for observation and quantification of elastic fibers.
Schiff reagent is formed by the reaction of basic fuchsin with sulfurous acid.
Origin
Mid 19th century: from German Fuchs 'fox', translating French Renard(the name of the chemical company which first produced fuchsin commercially) + -in1.