D-glucose has the general chemical properties of the aldose: oxidants generated gluconic acid, glucose, acid or glucuronic acid; reducing agent role, generating Sorbitolum; weak base under the action of glucose and the other two structuressimilar to the six-carbon sugar-D(-)-fructose and mannose-among enol into each other. Combination of glucose but also with phenylhydrazine, generate glucose Sa, the latter in crystalline form and melting point with other sugar Sa can be used as a means of identification of glucose.