Compound as reactive (1)
NAD+ + galactitol → NADH + keto-D-tagatose + H+
Compound as product (1)
H2O + galactitol 1-phosphate → phosphate + galactitol
Reversible reaction (3)
NADP+ + galactitol ↔ NADPH + β-D-galactopyranose + H+
NAD+ + galactitol ↔ NADH + H+ + keto-L-tagatose
NAD+ + galactitol ↔ NADH + L-xylo-3-hexulose + H+