FORMULA OF
SCHIFF' S REAGENT
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It can be used to differentiate between aldehyde and ketones. Fuschsine or rosaniline hydrochloride is a magenta-colored dye with a chemical formula C20H20N3·HCl, which is decolorized by sodium bisulfat
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The Schiff reagent is the reaction product of a dye formulation such as fuchsin and sodium bisulfite; pararosaniline (which lacks an aromatic methyl group) and new fuchsin (which is uniformly mono-methylated ortho to the dye's amine functionalities) are not dye alternatives with comparable detection chemistry.
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