SMILES: CCCCC/C=C/C=C\\1/C=C[C@@H]([C@@H]1C/C=C\\CCCC(=O)O)O
Description: The molecule is a prostaglandin D derivative that is prostaglandin D2 lacking the 15-hydroxy group and having C=C double bonds at positions 12(13) and 14(15). It derives from a prostaglandin D2.