[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch1][O][C@H1][Branch1][#Branch1][C@H1][Branch1][Ring1][C][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a four-carbon sugar that is found in algae, fungi, and lichens. It is twice as sweet as sucrose and can be used as a coronary vasodilator."}]