Products of the o-Toluidine oxidation with glucose oxidase and peroxidase Could anybody describe which product is formed in the following reaction (o-Toluidine oxidation)? 

$$\ce{H2O2 + o-Toluidine_{uncolored} - Peroxidase -&gt; H2O + 1/2 O2 + o-Toluidine\; Oxidate_{colored}} $$

Note: Hydrogen peroxide is one of the products of glucose oxidation to glucolactone by glucose oxydase.
The product most likely is 2-methylnitrobenzene (3), which means that the amino group ($\ce{-NH2}$) in o-toluidine (1) is oxidized to a nitro group ($\ce{-NO2}$). The oxidation proceeds via 2-methylnitrosobenzene (2).



The formation of 2-methylnitrobenzene can be detected photometrically at $\lambda$ = 400 nm, where the aniline does not absorb.