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What is the molecular formula of the molecule (18S)-15-[2-(3,4-diethoxyphenyl)ethyl]-18-phenyl-11-oxa-13,15-diazatetracyclo[8.8.0.02,7.012,17]octadeca-1(10),2,4,6,8,12(17),13-heptaen-16-imine ?
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C33H31N3O3
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