You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 2,3,7,8,12,13,17,18-octamethyl-2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,21,22,23,24-docosahydro-1H-corrin ?
user
C27H50N4
assistant