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system
Provide the molecular formula for the IUPAC named substance 9,9-dimethyl-11-[10-(3-naphthalen-2-ylphenyl)-2,3-dihydroanthracen-9-yl]-15-oxahexacyclo[11.11.0.02,10.03,8.014,22.016,21]tetracosa-1,3,5,7,10,12,14(22),16,18,20,23-undecaene .
user
C55H38O
assistant