The molecule is the (-)-enantiomer of usnic acid. It has a role as an EC 1.13.11.27 (4-hydroxyphenylpyruvate dioxygenase) inhibitor. It is a conjugate acid of a (-)-usnic acid(2-). It is an enantiomer of a (+)-usnic acid.
(9bS)-2,6-diacetyl-3,7,9-trihydroxy-8,9b-dimethyldibenzofuran-1-one