Glucose, organic compound, molecular formula C6H12O6. It is the most widely distributed and most important monosaccharide in nature. It is a polyhydroxy aldehyde. Pure glucose is colorless crystal, sweet but not as sweet as sucrose, soluble in water, slightly soluble in ethanol, and insoluble in ether. The natural aqueous glucose solution rotates to the right, so it belongs to "dextrose".
Glucose plays an important role in the field of biology. It is the energy source and metabolic intermediate of living cells, the main energy-generating substance of living things. Plants can produce glucose through photosynthesis. It is widely used in the field of candy manufacturing and medicine.