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What is the molecular formula of the molecule 2-methyl-9-N,23-N-bis(3-methylphenyl)-9-N,23-N-diphenyl-14,18-dioxaheptacyclo[15.11.0.03,15.04,13.06,11.019,28.021,26]octacosa-1(17),2,4(13),5,7,9,11,15,19(28),20,22,24,26-tridecaene-9,23-diamine ?
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C53H38N2O2
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