. "Catalysis of the reaction: 2-nitrophenol + 2 H(+) + 2 NADPH + O(2) = catechol + H(2)O + 2 NADP(+) + nitrite." . . "2-nitrophenol 2-monooxygenase activity" . "2-nitrophenol oxygenase activity" . "2-nitrophenol,NADPH:oxygen 2-oxidoreductase (2-hydroxylating, nitrite-forming)" . "nitrophenol oxygenase activity" . . .