You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-O-[2-[[2-(4-hydroxybutanoyl)-4-methylcyclohexanecarbonyl]oxymethyl]-3-[2-(2-hydroxyethoxycarbonyl)-4-methylcyclohexanecarbonyl]oxy-2-[[2-(2-hydroxyethoxycarbonyl)-4-methylcyclohexanecarbonyl]oxymethyl]propyl] 2-O-(2-hydroxyethyl) 4-methylcyclohexane-1,2-dicarboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C50H78O19
assistant