You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 3-[[2-[5-chloro-2-(1,2,4-triazol-1-yl)anilino]-2-oxoethyl]amino]-5-fluoro-4-methylbenzoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H17ClFN5O3
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