butanoyl-CoA + NAD(+) => (2E)-butenoyl-CoA + NADH + H(+)
butanoyl-coa + nad(+) => (2e)-butenoyl-coa + nadh + h(+)
butanoyl-CoA + NAD(+) => (2E)-butenoyl-CoA + NADH + H(+)
butanoyl-coa + nad(+) => (2e)-butenoyl-coa + nadh + h(+)