You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-N-(3-methyl-4,5-dioctylphenyl)-3-N-(3-octyl-4,5-diphenylphenyl)pentane-2,3-diimine is the IUPAC name of a molecule. Please give its molecular formula.
user
C54H76N2
assistant