A reagent for the chemical assay of ascorbic acid that depends on the reducing properties of the latter. It is red in acidic solution; in the presence of the vitamin C it undergoes reduction and becomes colorless, the vitamin being oxidized to dehydroascorbic acid. Often misnamed dichlorophenol-indophenol.
References in periodicals archive ?
The NAD(P)H:quinone oxidoreductase 1 (NQ01) activity was measured as 2,6-dichloroindophenol (DCIP) reduction in the cell cytosol.
l], decylubiquinone, 2,6-dichloroindophenol (DCIP), [1] rotenone, and antimycin-A were obtained from Sigma.

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