Reaction catalyzed by 3-carboxyethylcatechol 2,3-dioxygenase (1.13.11.16), biphenyl-2,3-diol 1,2-dioxygenase (1.13.11.39), catechol 2,3-dioxygenase (1.13.11.2) show all sequences for 1.13.11.2
+
=
3-methylcatechol
+
O2
=
2-hydroxy-6-oxohepta-2,4-dienoate