Methyl α-D-galactopyranoside monohydrate

This α-D-galactoside derivative, methyl α-D-galactopyranoside monohydrate, acts as a competitive inhibitor of both extracellular and intracellular α-galactosidase enzymes in Debaryomyces hansenii, with K i values of 0.82 mM and 1.12 mM, respectively. It is a useful biochemical tool for studying galactoside metabolism and enzyme inhibition in yeast, applicable in both in vitro and microbiological research contexts.