You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1,5-dibutoxy-2-[diazo-(2,4-dibutoxy-5-ethylphenyl)sulfonylmethyl]sulfonyl-4-ethylbenzene is the IUPAC name of a molecule. Please give its molecular formula.
user
C33H50N2O8S2
assistant