Α-D-乳酸吡喃糖苷甲酯是什么，有什么用途啊？

基本信息：中文名称 Α-D-乳酸吡喃糖苷甲酯中文别名 Alpha-D-乳酸吡喃糖苷甲酯单水合物;甲基-α-D-半乳糖苷;alpha-D-乳酸吡喃糖苷甲酯;甲基α-D-吡喃半乳糖苷一水合物;α-D-乳酸吡喃糖苷甲酯;英文名称 methyl α-D-galactoside英文别名 MEHTYL-A-D-GALACTOPYRANOSIDE;METHYL-A-D-GALACTOPYRANOSIDE;(2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-methoxytetrahydro-2H-pyran-3,4,5-triol;methyl alpha-D-galactoside;Methyl-alpha-D-galactopyranoside;METHYL-α-D-GALACTOPYRANOSIDE;1-O-METHYL-GALACTOSIDE;Methyl α-D-Galactopyranoside Monohydrate;Methyl α-D-galactopyranoside;Methyl α-D-galactoside;CAS号 3396-99-4分子式 C7H14O6分子量 194.18200物化性质：外观性状 白色或灰白色粉末折射率 176.5 ° (C=1, H2O)闪点 189.1ºC熔点 116-117 °C(lit.)密度 1.47g/cm3沸点 389.1ºC at 760 mmHgΑ-D-乳酸吡喃糖苷甲酯的用途：用作制药中间体