You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2,2-diphenyl-N-[2,2,2-trichloro-1-[(3-hydroxyphenyl)carbamothioylamino]ethyl]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H20Cl3N3O2S
assistant