You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-[5-[5,10-bis[2-methyl-6-(trideuteriomethyl)phenyl]boranthren-2-yl]-2-methylphenyl]-1,4-dimethyl-5-(trideuteriomethyl)pyridin-1-ium .
user
C43H42B2N+
assistant