Baer, Hans H. et al. published their research in Carbohydrate Research in 1992 | CAS: 53784-83-1

Heptakis(6-Bromo-6-Deoxy)-β-Cyclodextrin (cas: 53784-83-1) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. Bromine-containing agents predominate because not only are they more efficient than similar chlorine-containing species, but also the high atomic weight of bromine ensures that it is present in a high mass fraction within most organobromine compounds.HPLC of Formula: 53784-83-1

Improved preparation of hexakis(6-deoxy)cyclomaltohexaose and heptakis(6-deoxy)cyclomaltoheptaose was written by Baer, Hans H.;Vargas Berenguel, Antonio;Shu, Youn Y.;Defaye, Jacques;Gadelle, Andree;Santoyo Gonzalez, Francisco. And the article was included in Carbohydrate Research in 1992.HPLC of Formula: 53784-83-1 This article mentions the following:

Title compounds I (R = H; n = 6, 7) were prepared from I (R = OH) by direct halogenation with Br or iodine and DMF-PPh3, followed by reductive dehalogenation with NaBH4. In the experiment, the researchers used many compounds, for example, Heptakis(6-Bromo-6-Deoxy)-β-Cyclodextrin (cas: 53784-83-1HPLC of Formula: 53784-83-1).

Heptakis(6-Bromo-6-Deoxy)-β-Cyclodextrin (cas: 53784-83-1) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. Bromine-containing agents predominate because not only are they more efficient than similar chlorine-containing species, but also the high atomic weight of bromine ensures that it is present in a high mass fraction within most organobromine compounds.HPLC of Formula: 53784-83-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary