[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][C][=Branch1][=Branch1][=C][N][=C][Ring1][=Branch1][C][C][Branch1][C][O][Branch1][=Branch2][P][=Branch1][C][=O][Branch1][C][O][O][P][=Branch1][C][=O][Branch1][C][O][O-1].[Na+1]"}, {"from": "gpt", "value": "The molecule is the sodium salt of risedronic acid, a synthetic pyridinyl bisphosphonate. Risedronic acid binds to hydroxyapatite crystals in bone and inhibits osteoclast-dependent bone resorption."}]