You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 13-[3-(4-carbazol-9-ylpyridin-2-yl)phenyl]-1,13-diazapentacyclo[10.7.1.02,7.08,20.014,19]icosa-2,4,6,8(20),9,11,14,16,18-nonaene .
user
C41H26N4
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