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system
Name the molecular formula for the molecule established as 3-methyl-13-[3-[2-methyl-5-(N-phenylanilino)phenyl]but-2-enyl]-N,N-diphenylpentacyclo[18.3.1.115,19.02,11.04,9]pentacosa-1(23),2,4(9),5,7,15(25),16,18,20(24),21-decaen-6-amine using the IUPAC nomenclature.
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C61H54N2
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