You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-O-(2-hydroxybutyl) 2-O-[2-hydroxy-3-[(Z)-4-methoxy-4-oxobut-2-enoyl]oxypropyl] cyclohexane-1,2-dicarboxylate by IUPAC nomenclature, provide its molecular formula.
user
C20H30O10
assistant