You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2S)-2-[[4-amino-5-(4-tert-butylphenyl)-1,2,4-triazol-3-yl]sulfanyl]-N-methyl-N-phenylpropanamide by IUPAC nomenclature, provide its molecular formula.
user
C22H27N5OS
assistant