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-[[1-[(4-chlorophenyl)methyl]piperidin-1-ium-4-yl]iminomethyl]-5-(hydroxymethyl)-2-methylpyridin-3-ol .
user
C20H25ClN3O2+
assistant