galactose, alpha-d-galactofuranose, beta-d- galactofuranose, milk sugar molecule. cyclic form. structural chemical formula and

aging alpha atom atomic beta carb carbon chemical chemistry composition compound cyclic dairy flat form formula furanose galactofuranose galactose galactosemia galactosemic glucose hydrogen icon lactose milk molecular molecule monosaccharide oxygen pyranose saccharide schematic science senescence skeletal structural structure sugar sweet sweetness