You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2R)-2-[4-[(2S)-2-[(cyclopropylamino)methyl]-4-thiophen-2-ylsulfonylpiperazin-1-yl]phenyl]-1,1,1-trifluoropropan-2-ol into its molecular formula.
user
C21H26F3N3O3S2
assistant