You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 4-[2-[(E)-dec-4-enoyl]oxy-3-[(5E,8E,11E,14E)-icosa-5,8,11,14-tetraenoyl]oxypropoxy]-2-(trimethylazaniumyl)butanoate into its molecular formula.
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C40H67NO7
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