You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-N-ethyl-3,5-difluoro-6-N-[(4-methyl-1,2,4-triazol-3-yl)methyl]pyridine-2,6-diamine is the IUPAC name of a molecule. Please give its molecular formula.
user
C11H14F2N6
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