You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4E)-5-chloro-10-[4-[4-(4,4-dimethyl-2-methylidenepentyl)-3-fluorophenyl]pent-4-enyl]-1,3,7-triazacyclododeca-1,4,6-triene is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H39ClFN3
assistant