[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][Branch1][Ring1][C][O][O]"}, {"from": "gpt", "value": "The molecule is a propanediol that exists as a clear, colorless and hygroscopic liquid and consists of propane where the hydrogens at positions 1 and 2 are substituted by hydroxyl groups. Propylene glycol is used as an organic solvent and diluent in pharmaceuticals and many other industrial applications."}]