Enzymatic reactions [BR:br08201]
1. Oxidoreductase reactions
1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)
1.13.11 With incorporation of two atoms of oxygen
1.13.11.36
R04602 5-Amino-4-chloro-2-(2,3-dihydroxyphenyl)-3(2H)-pyridazinone + Oxygen <=> 5-Amino-4-chloro-2-(5-hydroxymuconoyl)-3(2H)-pyridazinone