You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-2-[(4-benzyl-5-methyl-1,2,4-triazol-3-yl)sulfanyl]-1-(2,3-dihydro-1H-inden-5-yl)propan-1-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H23N3OS
assistant