SMILES: C=C1CC(OC1=O)CCCCCCCCCC2=C(C(=CC=C2)O)O
Description: The molecule is a butan-4-olide having a methylidene group at the 3-position and a 9-(2,3-dihydroxyphenyl)nonyl substituent at the 5-position. It is a butan-4-olide and a member of catechols.