You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[3-[4-[3-(4-amino-5-chloropyrrolo[2,1-f][1,2,4]triazin-7-yl)phenyl]-2,2-dimethyl-3-oxopiperazin-1-yl]-3-oxopropyl]acetamide into its molecular formula.
user
C23H26ClN7O3
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