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system
Provide the molecular formula for the IUPAC named substance N-(9,9-dimethylfluoren-2-yl)-N-(2-phenylphenyl)spiro[tetracyclo[13.4.0.02,7.08,13]nonadeca-1(19),2,4,6,8,10,12,15,17-nonaene-14,9'-xanthene]-3'-amine .
user
C58H41NO
assistant