Schiff reagent causes a reduction of the quinoid structure resulting in which colorless compound?

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Multiple Choice

Schiff reagent causes a reduction of the quinoid structure resulting in which colorless compound?

Explanation:
Schiff reagent works by converting the dye to a colorless leuco form. The colored dye fuchsin has a quinoid structure; when it is reduced by Schiff’s reagent, it becomes leucofuchsin, the colorless form. In tissues containing aldehydes, the leucofuchsin is then reoxidized to the magenta color of fuchsin, producing the positive staining. The other options are not the reduced colorless product produced by Schiff reagent.

Schiff reagent works by converting the dye to a colorless leuco form. The colored dye fuchsin has a quinoid structure; when it is reduced by Schiff’s reagent, it becomes leucofuchsin, the colorless form. In tissues containing aldehydes, the leucofuchsin is then reoxidized to the magenta color of fuchsin, producing the positive staining. The other options are not the reduced colorless product produced by Schiff reagent.

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