You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[4-benzylsulfanyl-2-(4-fluorophenyl)-4,5-dihydrobenzo[e][1,3]benzothiazol-6-yl]oxy]acetic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H20FNO3S2
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