[{"from": "human", "value": "Please give me some details about this molecule. [C][=C][C][=C][Branch2][Ring2][#C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=C][C][=C][Branch2][Ring1][P][C][=Branch1][C][=O][C][=Branch2][Ring1][Branch2][=C][Ring1][#Branch1][O][C][=C][Branch1][#C][C][=Branch1][O][=C][Branch1][#Branch1][C][=C][Ring1][#C][Ring1][=Branch1][I][O-1][I][I][I][C][=Branch1][C][=O][O-1].[Na+1].[Na+1]"}, {"from": "gpt", "value": "The molecule is used as a food additive [EAFUS] (\"EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]\").<br /> Fd&c red no. 3 belongs to the family of Xanthenes. These are polycyclic aromatic compounds containing a xanthene moiety, which consists of two benzene ring joined to each other by a pyran ring."}]