You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-(2,6-diethylphenyl)-2-methyl-3-[(2-methylsulfinylphenoxy)methyl]-4-propan-2-yloxypyridine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H33NO3S
assistant