You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (E)-3-(3-methoxy-4-methyl-6,7,8,9-tetrahydrodibenzofuran-2-yl)-N-(thiophen-2-ylmethyl)but-2-enamide ?
user
C23H25NO3S
assistant