23,24-dihydrocucurbitacin B + NAD(+) <=> cucurbitacin B + NADH + H(+)
23,24-dihydrocucurbitacin b + nad(+) <=> cucurbitacin b + nadh + h(+)
23,24-dihydrocucurbitacin B + NAD(+) <=> cucurbitacin B + NADH + H(+)
23,24-dihydrocucurbitacin b + nad(+) <=> cucurbitacin b + nadh + h(+)