SMILES: C1CC(=O)OC1CC2=CC(=CC=C2)O[C@H]3[C@@H]([C@H]([C@@H]([C@H](O3)C(=O)O)O)O)O
Description: The molecule is a butan-4-olide that is 5-(3'-hydroxyphenyl)-gamma-valerolactone in which the phenolic hydrogen has been replaced by a beta-D-glucuronyl residue It has a role as a human urinary metabolite. It is a butan-4-olide and a beta-D-glucosiduronic acid.