You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5E,8E,11E,20E,23E,26E)-hentriaconta-5,8,11,20,23,26-hexaen-1,14,17,30-tetrayne-3,16,29-triol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C31H36O3
assistant