 This linkage inhibits further bonding to other saccharide units, and prevents sucrose from spontaneously reacting with cellular and circulatory macromolecules in the manner that glucose and other reducing sugars do.Since sucrose contains no anomeric hydroxyl groups, it is classified as a non-reducing sugar.Sucrose crystallizes in the monoclinic space group P21 with room-temperature lattice parameters "a" = 1.08631 nm, "b" = 0.87044 nm, "c" = 0.77624 nm, β = 102.938°.