You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
7,18-bis[2-[2-[2-(2-pyridin-3-yloxyethoxy)ethoxy]ethoxy]ethyl]-7,18-diazaheptacyclo[14.6.2.22,5.03,12.04,9.013,23.020,24]hexacosa-1(23),2,4,9,11,13,15,20(24),21,25-decaene-6,8,17,19-tetrone is the IUPAC name of a molecule. Please give its molecular formula.
user
C50H48N4O12
assistant