You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [2-[3-(diethylamino)propoxycarbonyloxymethyl]-3-(4-hexoxy-4-octoxybutanoyl)oxypropyl] (Z)-octadec-9-enoate;methane by IUPAC nomenclature, provide its molecular formula.
user
C49H95NO9
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