You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1R,5R,7S,12R,13S,14S)-13-hydroxy-6,6,10,14-tetramethyltricyclo[10.3.0.05,7]pentadeca-3,9-diene-2,11-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H26O3
assistant