[{"from": "human", "value": "Describe this molecule. [C][=C][C][=C][Branch1][N][C][=Branch1][Ring2][=C][Ring1][=Branch1][N+1][=Branch1][C][=O][O-1][O][C@H1][C@@H1][Branch1][P][C@H1][Branch1][=N][C@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a beta-D-galactoside having a 2-nitrophenyl substituent at the anomeric position. It has a role as a chromogenic compound. It is a beta-D-galactoside and a C-nitro compound. It is functionally related to a 2-nitrophenol."}]