You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule [2-[(2,3-dihydroxy-2-methylpropoxy)methyl]-3-[2-[2-[2-[3-[3-hydroxy-2-(hydroxymethyl)-2-methylpropanoyl]oxy-2-[[3-hydroxy-2-(hydroxymethyl)-2-methylpropanoyl]oxymethyl]-2-methylpropanoyl]oxyethoxymethyl]-3-[2-[2-[[3-hydroxy-2-(hydroxymethyl)-2-methylpropanoyl]oxymethyl]-3-[2-(hydroxymethyl)oxirane-2-carbonyl]oxy-2-methylpropanoyl]oxyethoxy]-2-[2-[2-[[3-hydroxy-2-(hydroxymethyl)-2-methylpropanoyl]oxymethyl]-3-[2-(hydroxymethyl)oxirane-2-carbonyl]oxy-2-methylpropanoyl]oxyethoxymethyl]propoxy]ethoxy]-2-methyl-3-oxopropyl] 2-(hydroxymethyl)oxirane-2-carboxylate .
user
C69H112O43
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