You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[9-(2,6-dioxopiperidin-3-yl)pyrido[2,3-b]indol-6-yl]-[2-[2-(2-oxoethoxy)ethoxy]ethyl]carbamic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H24N4O7
assistant