2,3,4,6-Tetra-O-acetyl-β-D-galacto­pyrano­syl butyrate

The title compound, C₁₈H₂₆O₁₁, was synthesized by a condensation reaction of 2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl bromide and butyric acid. The acet­oxy­methyl and butyrate groups are located on the same side of the pyran ring, showing the β configuration for the D-glycosyl ester; the butyl group adopts an extend conformation, the C—C—C—C torsion angle being 179.1 (7)°. In the crystal, the mol­ecules are linked by weak C—H...O hydrogen bonds.