You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[(3R,3aS)-3-(4-fluorophenyl)-3,3a,4,5-tetrahydrobenzo[g]indazol-2-yl]-2-(4-methylpiperazin-1-yl)ethanone into its molecular formula.
user
C24H27FN4O
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