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system
Provide the molecular formula for the IUPAC named substance N-[2-(3-phenylphenyl)phenyl]-N-triphenylen-2-ylspiro[1-azapentacyclo[10.7.1.02,7.08,20.014,19]icosa-2,4,6,8(20),9,11,14,16,18-nonaene-13,9'-fluorene]-2'-amine .
user
C67H42N2
assistant