You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[[5-(2,2-dimethylpropanoylamino)-1,3,4-thiadiazol-2-yl]sulfanylmethyl]benzoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C15H17N3O3S2
assistant