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What is the molecular formula of the molecule 6-dibenzofuran-1-yl-2,3-diphenylquinoxaline;6-(4-dibenzofuran-1-ylphenyl)-2,3-diphenylquinoxaline;2-(4-dibenzofuran-1-ylphenyl)-3-phenylpyrido[2,3-b]pyrazine;2-(4-dibenzofuran-1-ylphenyl)-3-phenylpyrido[3,4-b]pyrazine ?
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C132H82N10O4
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