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 (11-dimethylsulfonio-26-methyl-5-pentacyclo[11.10.1.16,10.117,21.03,14]hexacosa-1(24),2,6,8,10(26),13,17,19,21(25)-nonaenyl)-dimethylsulfanium .
user
C31H38S2+2
assistant