D-altronate => 2-dehydro-3-deoxy-D-gluconate + H2O
d-altronate => 2-dehydro-3-deoxy-d-gluconate + h2o
D-altronate => 2-dehydro-3-deoxy-D-gluconate + H2O
d-altronate => 2-dehydro-3-deoxy-d-gluconate + h2o