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Under IUPAC nomenclature, a molecule named (2E)-2-[(2Z)-2-[[20-[(Z)-[(1Z)-1-[cyano(isocyano)methylidene]-3-oxoinden-2-ylidene]methyl]-12,12-bis(4-hexylphenyl)-24-(4-methylphenyl)-24-(4-octa-1,3,5,7-tetraynylphenyl)-5,9,17,21-tetrathiaheptacyclo[13.9.0.03,13.04,11.06,10.016,23.018,22]tetracosa-1(15),2,4(11),6(10),7,13,16(23),18(22),19-nonaen-8-yl]methylidene]-3-oxoinden-1-ylidene]-2-isocyanoacetonitrile is given. What is its corresponding molecular formula?
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C91H60N4O2S4
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