[{"from": "human", "value": "Could you provide a description of this molecule? [C][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C][C][C][P][=Branch1][C][=O][Branch1][C][O][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N+1][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is an N-[4-(4-nitrophenylphospho)butanoyl]alanine that has R at the chiral carbon. It has a role as an epitope. It is a N-[4-(4-nitrophenylphospho)butanoyl]alanine and a D-alanine derivative. It is an enantiomer of a N-[4-(4-nitrophenylphospho)butanoyl]-L-alanine."}]