You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (1R,4E,6S,9R,11S,12R,13E,17S,19R)-9,11-dihydroxy-6,9,12,14,19-pentamethyl-19-propyl-2,18-dioxabicyclo[15.3.0]icosa-4,13-diene-3,8-dione ?
user
C26H42O6
assistant