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 8-[(4-benzylpiperazin-1-yl)methyl]-7-[(3-chlorophenyl)methyl]-1,3-dimethyl-5H-purin-3-ium-2,6-dione ?
user
C26H30ClN6O2+
assistant