You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[5-methyl-2-(4-methylpyridin-2-yl)pyrazol-3-yl]-3-(6-methyl-2,3,4,9-tetrahydro-1H-carbazol-3-yl)urea is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H26N6O
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