xanthotoxol + oxidized [NADPH--hemoprotein reductase] + H2O + H(+) => psoralen + reduced [NADPH--hemoprotein reductase] + O2
xanthotoxol + oxidized [nadph--hemoprotein reductase] + h2o + h(+) => psoralen + reduced [nadph--hemoprotein reductase] + o2
xanthotoxol + oxidized [NADPH--hemoprotein reductase] + H2O + H(+) => psoralen + reduced [NADPH--hemoprotein reductase] + O2
xanthotoxol + oxidized [nadph--hemoprotein reductase] + h2o + h(+) => psoralen + reduced [nadph--hemoprotein reductase] + o2