Models of glucose, galactose, mannose and allose pyranose structures are shown below. If all four models are not displayed, it may be necessary to reload the page by clicking the reload button. Carbon atoms are dark gray, hydrogens are cyan, and oxygen is red. The molecules can be rotated by clicking on the structure and dragging the mouse. Holding the shift key during this operation allows zooming.
α-D-glucopyranose
β-D-galactopyranose
α-D-mannopyranose
β-D-allopyranose