1,2-dihydro-alpha-santonin + NAD(+) <=> alpha-santonin + NADH + H(+)
1,2-dihydro-alpha-santonin + nad(+) <=> alpha-santonin + nadh + h(+)
1,2-dihydro-alpha-santonin + NAD(+) <=> alpha-santonin + NADH + H(+)
1,2-dihydro-alpha-santonin + nad(+) <=> alpha-santonin + nadh + h(+)