Heptakis(6-O-tert-butyldimethylsilyl)-β-cyclodextrin is an intermediate formed in the synthesis of Heptakis(6-O-sulfo)-β-cyclodextrin Heptasodium Salt (H281125), a β-Cyclodextrin derivative that inhibits anthrax lethal toxin. Chiral selector for capillary electrophorese, CE.