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system
Please write the molecular formula of the molecule 5,5-dimethyl-2-phenyl-4-(4-pyren-1-ylphenyl)indeno[1,2-d]pyrimidine;7-(9,10-dinaphthalen-2-ylanthracen-2-yl)-5,5-dimethyl-2,4-diphenylindeno[1,2-d]pyrimidine;4-[3-(9,10-dinaphthalen-2-ylanthracen-2-yl)phenyl]-5,5-dimethyl-2-phenylindeno[1,2-d]pyrimidine .
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C159H108N6
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