Did you mean Anhydro glucose?
If so, that one is c6-H10-O5 or cellulose
The molecular formula of glucose, C6H12O6 = 6 x CH2O c. The molecular weight of glucose is 180 g/mol. It is equal to 6 x 30 g/mol.
The difference is in that anhydro glucose has less atoms, thus weighting less
