1,2-dihydro-alpha-santonin + NADP(+) = alpha-santonin + NADPH + H(+)
1,2-dihydro-alpha-santonin + nadp(+) = alpha-santonin + nadph + h(+)
1,2-dihydro-alpha-santonin + NADP(+) = alpha-santonin + NADPH + H(+)
1,2-dihydro-alpha-santonin + nadp(+) = alpha-santonin + nadph + h(+)