lactose 6-phosphate + H2O <=> D-galactose 6-phosphate + beta-D-glucose
lactose 6-phosphate + h2o <=> d-galactose 6-phosphate + beta-d-glucose
lactose 6-phosphate + H2O <=> D-galactose 6-phosphate + beta-D-glucose
lactose 6-phosphate + h2o <=> d-galactose 6-phosphate + beta-d-glucose