You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2R)-2-amino-N-[3-[4-[3-[(9,10-dioxoanthracen-1-yl)amino]propyl]piperazin-1-yl]propyl]propanamide into its molecular formula.
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C27H35N5O3
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