You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[4-(3,4-dimethylphenyl)-1,3-thiazol-2-yl]-5-oxo-4H-pyrazolo[1,5-a]quinazoline-3-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H17N5O2S
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