[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch1][#C][C@H1][Branch1][O][C@@H1][Branch1][#Branch1][C@H1][Branch1][Ring1][C][=O][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a monosaccharide of the aldopentose type consisted of five carbon atoms and an aldehyde functional group. Xylose is a sugar isolated from wood. D-Xylose is a sugar widely used as a diabetic sweetener in food and beverage. Xylose has also been used as a diagnostic agent to observe malabsorption. Reduction of xylose by catalytic hydrogenation produces the common food additive sweetener substitute xylitol [DB11195].  The dextrorotary form of xylose, D-xylose, refers usually to the endogenously occurring form of the sugar in living things. The levorotary form, L-xylose, can refer to the form that is synthesized. Nevertheless, xylose by itself may not necessarily serve many purposes immediately - but its metabolism results in a variety of substrates that can serve important nutritional and biological purposes."}]