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Convert the IUPAC name of a molecule 2-N,16-N,12,12-tetraphenyl-2-N,16-N-bis(4-phenylphenyl)-20-thiapentacyclo[15.2.1.05,19.06,11.013,18]icosa-1,3,5(19),6,8,10,13(18),14,16-nonaene-2,16-diamine into molecular formula.
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C67H46N2S
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