You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-methyl-3-(4-methylphenyl)sulfonyloxy-2-[(4-methylphenyl)sulfonyloxymethyl]propyl] 4-methylbenzenesulfonate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H30O9S3
assistant