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system
Please write the molecular formula of the molecule 9-N,15-N-bis(4-tert-butylphenyl)-12-naphthalen-1-yl-9-N,15-N-bis(4-trimethylsilylphenyl)-12-azapentacyclo[11.8.0.02,11.03,8.016,21]henicosa-1(13),2(11),3,5,7,9,14,16,18,20-decaene-9,15-diamine .
user
C68H69N3Si2
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