[{"from": "human", "value": "Provide a description of this molecule. [O][P][=Branch1][C][=O][Branch1][C][O][O-1].[Na+1]"}, {"from": "gpt", "value": "The molecule is a saline laxative that is thought to work by increasing fluid in the small intestine. It usually results in a bowel movement after 30 minutes to 6 hours."}]