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system
Provide the molecular formula for the IUPAC named substance 2-[10-[3-(21,21-dimethyl-16-pentacyclo[12.7.0.02,7.08,13.015,20]henicosa-1(14),2,4,6,8,10,12,15,17,19-decaenyl)phenyl]anthracen-9-yl]-9,9'-spirobi[fluorene];21,21-dimethyl-16-[3-[10-(3-phenylphenyl)anthracen-9-yl]phenyl]pentacyclo[12.7.0.02,7.08,13.015,20]henicosa-1(14),2,4,6,8,10,12,15,17,19-decaene .
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C123H82
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