You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 4-chloro-N-(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)-N-propylbenzenesulfonamide ?
user
C16H18ClN5O2S
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