label: 3-oxochola-1,4-dien-22-oate + NADH + O2 + H(+) = 9alpha-hydroxy-3-oxochola-1,4-dien-22-oate + NAD(+) + H2O
label_lc: 3-oxochola-1,4-dien-22-oate + nadh + o2 + h(+) = 9alpha-hydroxy-3-oxochola-1,4-dien-22-oate + nad(+) + h2o