You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (2E,4Z,6E,8E)-3-methyl-7-propan-2-yl-9-(2,6,6-trimethylcyclohex-2-en-1-yl)nona-2,4,6,8-tetraenal .
user
C22H32O
assistant