In this paper, a β-C-pyranogalactoside (IX) was synthesized from D-galactose through a nine-step reaction with a total yield of 32% under the palladium catalyst, and its structure was characterized by nuclear magnetic resonance (NMR) and high-resolution electrospray ionization mass spectrometry (HR-ESI-MS). The absolute configuration of this pyranogalactoside was confirmed with a Flack parameter of –0.01(6) by X-ray crystallography using a Cu radiation source. Compound (IX), C₁₂H₁₉NO₇, crystal data: monoclinic system, space group P2₁2₁2₁, a = 8.53480(10), b = 9.4207(2), c = 18.1308(3) Å, V = 1457.79(4) ų, Z = 4, F(000) = 616, D_c = 1.318 g/cm³, μ = 0.931 mm⁻¹, R = 0.0294 and wR = 0.0752 for 2875 independent reflections (R_int = 0.0163) and 2857 observed ones (I > 2σ(I)).