butanal + FMN + sulfite + H2O + 2 H(+) => butane-1-sulfonate + FMNH2 + O2
butanal + fmn + sulfite + h2o + 2 h(+) => butane-1-sulfonate + fmnh2 + o2
butanal + FMN + sulfite + H2O + 2 H(+) => butane-1-sulfonate + FMNH2 + O2
butanal + fmn + sulfite + h2o + 2 h(+) => butane-1-sulfonate + fmnh2 + o2