You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 3-[[2-(4-propan-2-ylphenyl)-1,3-thiazol-4-yl]methyl]-7-thia-1,3-diazaspiro[4.4]nonane-2,4-dione is given. What is its corresponding molecular formula?
user
C19H21N3O2S2
assistant