Because this is triacetyl-β-cyclodextrin there are three acetyl groups per unit. All of the R groups in the structure are acetyl groups. Typically, an order needs to be ten times larger than the largest size offered in order to be bulk packaged and priced. In this case, that would be 100 grams. A request can be entered for a bulk quote, here:
https://www.sigmaaldrich.com/services/support/bulk-quotation-request