[{"from": "human", "value": "Please give me some details about this molecule. [C][C][=Branch1][C][=O][O][C][C@@H1][C@H1][Branch2][Ring1][Branch1][C@@H1][Branch1][P][C@H1][Branch1][Branch2][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][O][O][C][=Branch1][C][=O][C][O][O]"}, {"from": "gpt", "value": "The molecule is a glucan derivative obtained through the esterification of cellulose by acetic anhydride or acetic acid, resulting in the substitution of some of the hydroxy groups of cellulose by acetyl groups. It is used in a variety of applications including base material for photographic film, clothing, membrane filters, coatings, food packaging, and as a frame material for eyeglasses. It is a glucan derivative and an acetate ester."}]