cholest-4-en-3-one + NADPH + H(+) => 5alpha-cholestan-3-one + NADP(+)
cholest-4-en-3-one + nadph + h(+) => 5alpha-cholestan-3-one + nadp(+)
cholest-4-en-3-one + NADPH + H(+) => 5alpha-cholestan-3-one + NADP(+)
cholest-4-en-3-one + nadph + h(+) => 5alpha-cholestan-3-one + nadp(+)