[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C][C@H1][Branch2][Ring1][C][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C][C@H1][Branch1][Ring1][C][O][O][O][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C]"}, {"from": "gpt", "value": "The molecule is a 1,2-diacyl-sn-glycero-3-phospho-(1'-sn-glycerol)(1-) in which the 1- and 2-acyl groups are specified as octadecanoyl (stearoyl) and hexadecanoyl (palmitoyl) respectively; major species at pH 7.3. It is a conjugate base of a 2-hexadecanoyl-1-octadecanoyl-sn-glycero-3-phospho-(1'-sn-glycerol)."}]