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system
Provide the molecular formula for the IUPAC named substance 3-(3,5-diphenylphenyl)spiro[fluorene-9,19'-pentacyclo[14.2.1.05,18.06,11.012,17]nonadeca-1,3,5(18),6,8,10,12(17),13,15-nonaene] .
user
C49H30
assistant