3-methoxycatechol + reduced [NADH--hemoprotein reductase] + O2 <=> 1,2,3-trihydroxybenzene + oxidized [NADH--hemoprotein reductase] + formaldehyde + H2O + H(+)
3-methoxycatechol + reduced [nadh--hemoprotein reductase] + o2 <=> 1,2,3-trihydroxybenzene + oxidized [nadh--hemoprotein reductase] + formaldehyde + h2o + h(+)