nitro dyes


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ni·tro dyes

dyes in which the chromophore is -NO2, which is so acidic that all dyes in this group are of the acid type; important examples in cytoplasmic staining are picric acid and naphthol yellow S.

ni·tro dyes

(nī'trō dīz)
Dyes in which the chromophore is -NO2, which is so acidic that all dyes in this group are also acidic.