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system
For the molecule named 12-N,12-N,18-N,18-N-tetrakis(4-tert-butylphenyl)spiro[10,20-dioxaheptacyclo[14.11.0.02,14.03,11.04,9.019,27.021,26]heptacosa-1(27),2,4,6,8,11,13,16,18,21,23,25-dodecaene-15,8'-14-oxa-1,3-diazapentacyclo[11.7.1.02,7.09,21.015,20]henicosa-2(7),3,5,9(21),10,12,15,17,19-nonaene]-12,18-diamine by IUPAC nomenclature, provide its molecular formula.
user
C82H72N4O3
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