乳糖水和物 　日局収載
Lactose Hydrate


β-D-Galactopyranosyl-(1→4)-α-D-glucopyranose monohydrate

C₁₂H₂₂O₁₁▪H₂O  : 360.31
[64044-51-5 , α-及びβ-乳糖一水和物の混合物]