You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 3-O-[1-[15-[1-(3-ethoxy-3-oxopropanoyl)oxy-2-phenylethyl]-5,9,14,18-tetrathiapentacyclo[10.6.0.03,10.04,8.013,17]octadeca-4(8),6,13(17),15-tetraen-6-yl]-2-phenylethyl] 1-O-ethyl propanedioate by IUPAC nomenclature, provide its molecular formula.
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C40H40O8S4
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