What class of biomolecule does the compound C2H21O10?

The compound C2H21O10 does not conform to the typical elemental ratiOS of common biomolecules, making it challenging to classify definitively. However, given the high oxygen content and the presence of carbon and hydrogen, it may resemble a carbohydrate or a polyol. Carbohydrates typically follow the general formula of (C·H2O)n, suggesting it could be a complex sugar if its structure aligns with polysaccharides. Further structural information would be necessary for accurate classification.