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 4-[(E)-2-[3-[6-[2-[(E)-2-(4-cyanophenyl)ethenyl]-1,3-benzothiazol-3-ium-3-yl]hexyl]-1,3-benzothiazol-3-ium-2-yl]ethenyl]benzonitrile;dibromide .
user
C38H32Br2N4S2
assistant