You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-[1-(2,6-dimethylphenyl)tetrazol-5-yl]sulfanyl-N-(2-propan-2-ylphenyl)propanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H25N5OS
assistant