You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
7-N-methyl-7-N-[(1,3,5-trimethylpyrazol-4-yl)methyl]-[1,2,4]triazolo[4,3-c]pyrimidine-5,7-diamine is the IUPAC name of a molecule. Please give its molecular formula.
user
C13H18N8
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