[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][O][C][=Branch1][C][=O][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][C][=C][C][=Branch1][C][=O][C][=C][Ring1][#Branch1][O][C][=C][Ring1][O][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a carboxylic ester that is the ethyl ester of fluorescein in its ring-opened acid form and substituted on one of the oxygen functions of the xanthene nucleus by a carboxymethyl group. It has a role as a fluorescent probe. It is an ethyl ester and a dicarboxylic acid monoester. It is functionally related to a fluorescein (acid form)."}]