You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[4-[3-[2-(1,3-benzoxazol-2-yl)-4-thiophen-2-ylphenoxy]propoxy]phenyl]acetic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H23NO5S
assistant