You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[2-[(4S,5S)-3-[4-(4-methoxyphenoxy)phenyl]-5-pyridin-2-yl-2-sulfanylideneimidazolidin-4-yl]pyrrol-1-yl]benzoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C32H26N4O4S
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