You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2E)-2-[(2E,4E,6Z,8Z,10E,12E,14E)-4,9,13-trimethylhexadeca-2,4,6,8,10,12,14-heptaenylidene]cyclohexan-1-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H32O
assistant