[{"from": "human", "value": "Describe this molecule. [C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N][C][=Branch1][C][=O][C@@H1][Branch1][C][C][O][C@H1][C@@H1][Branch2][Ring1][Ring2][C@H1][Branch1][#C][O][C][Branch1][#Branch2][C@@H1][Ring1][=Branch1][N][C][=Branch1][C][=O][C][O][C][O][O]"}, {"from": "gpt", "value": "The molecule is the carbohydrate acid derivative anion formed by loss of a proton from the carboxy group of N-acetyl-D-muramoyl-L-alanine; principal microspecies at pH 7.3. It is a hydroxy monocarboxylic acid anion and a carbohydrate acid derivative anion. It is a conjugate base of a N-acetyl-D-muramoyl-L-alanine."}]