D-ribitol 5-phosphate + NADP(+) = D-ribulose 5-phosphate + NADPH + H(+)
d-ribitol 5-phosphate + nadp(+) = d-ribulose 5-phosphate + nadph + h(+)
D-ribitol 5-phosphate + NADP(+) = D-ribulose 5-phosphate + NADPH + H(+)
d-ribitol 5-phosphate + nadp(+) = d-ribulose 5-phosphate + nadph + h(+)