2,2',3-trihydroxybiphenyl monooxygenase activity
Catalysis of the reaction: biphenyl-2,2',3-triol + O2 + NADH + H+ = 2,2',3,3'-tetrahydroxybiphenyl + NAD + H2O.
GO:0016709
oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, NAD(P)H as one donor, and incorporation of one atom of oxygen
is_a