[{"from": "human", "value": "Describe this molecule. [C][Branch1][Ring1][C][S][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a fatty acid anion 3:0 that is the conjugate base of 3-mercaptopropanoic acid. It has a role as an algal metabolite. It is a conjugate base of a 3-mercaptopropanoic acid."}]