D-xylotetraono-1,5-lactone + H2O <=> D-xylotetraonate + H(+)
d-xylotetraono-1,5-lactone + h2o <=> d-xylotetraonate + h(+)
D-xylotetraono-1,5-lactone + H2O <=> D-xylotetraonate + H(+)
d-xylotetraono-1,5-lactone + h2o <=> d-xylotetraonate + h(+)