Benzoyl-CoA 2,3-dioxygenase (, benzoyl-CoA dioxygenase/reductase, BoxBA, BoxA/BoxB system) is an enzyme with systematic name benzoyl-CoA,NADPH:oxygen oxidoreductase (2,3-hydroxylating). This enzyme catalyses the following chemical reaction
Benzoyl-CoA 2,3-dioxygenase is involved in aerobic benzoate metabolism in Azoarcus evansii.