You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[3-[[(2Z)-2-hydroxyimino-2-pyridin-2-ylacetyl]amino]propylazaniumyl]propyl-dimethylazanium is the IUPAC name of a molecule. Please give its molecular formula.
user
C15H27N5O2+2
assistant