You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[3-[1-[2-(2-methoxyethylamino)ethylsulfonyl]piperidin-4-yl]-5-phenyl-1H-indol-7-yl]acetamide into its molecular formula.
user
C26H34N4O4S
assistant