You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-3-[4-[[2-(4-fluoro-2-methylphenyl)-6-hydroxy-3a,7a-dihydro-1-benzothiophen-3-yl]oxy]phenyl]-N-hydrazinylidene-N'-propylprop-2-enimidamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H27FN4O2S
assistant