An aldose is a sugar containing one aldehyde group per molecule and has the chemical formula C_3nH_6nO_3n.

With only 3 carbon atoms, glyceraldehyde is the simplest of all aldoses.

List of aldoses

• triose: glyceraldehyde
• tetroses: erythrose, threose
• pentoses: ribose, arabinose, xylose, lyxose
• hexoses: allose, altrose, glucose, mannose, gulose, idose, galactose, talose