You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (2Z)-2-[(2E)-2-[2-chloro-3-[(E)-2-[5-(diisocyanomethylidene)-4-isocyano-2,2-dimethylfuran-3-yl]ethenyl]-5-(4-ethynoxyphenyl)cyclohex-2-en-1-ylidene]ethylidene]-1-ethyl-3,3-dimethylindole by IUPAC nomenclature, provide its molecular formula.
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C40H35ClN4O2
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