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system
Provide the molecular formula for the IUPAC named substance 4-ethyl-5-(2-ethylphenyl)-10-(3-phenylphenyl)-1-azapentacyclo[10.7.1.02,7.08,20.013,18]icosa-2(7),3,5,8,10,12(20),13,15,17-nonaen-19-one .
user
C41H31NO
assistant