Products Supplements and chemical reagents Chemical reagents Cytochrome oxidase reagent (NN-dimethyl-p-phenylenediamine dichloride). C-063 Cytochrome oxidase reagent (NN-dimethyl-p-phenylenediamine dichloride). C-063 Categories Chemical reagents Product description catalogue number: C-063 Chemical reagent Pack size: 100 g, 25 g