[{"from": "human", "value": "Could you provide a description of this molecule? [C][Branch1][#Branch1][C@@H1][Branch1][Ring1][C][O][O][C][=Branch1][C][=O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a 2-oxo monocarboxylic acid that is 2-oxopentanoic acid which is substituted at positions 4 and 5 by hydroxy groups (the 4S-enantiomer). It is a 2-oxo monocarboxylic acid, a ketoaldonic acid, a 4-hydroxy monocarboxylic acid, a 5-hydroxy monocarboxylic acid and a pentonic acid. It is functionally related to a D-arabinonic acid. It is a conjugate acid of a 2-dehydro-3-deoxy-D-arabinonate. It is an enantiomer of a 2-dehydro-3-deoxy-L-arabinonic acid."}]