You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-hexyl-4-methyl-1,3,8-triazatricyclo[7.5.0.02,7]tetradeca-2,4,6,8-tetraene-6-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H28N4O
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