You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[3-[[6-[[1-(2,2-difluoroethyl)pyrazol-4-yl]amino]-3-methylsulfanyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl]amino]piperidin-1-yl]prop-2-en-1-one into its molecular formula.
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C19H23F2N9OS
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