You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name N-[3-[(2R)-2-methylpiperidin-1-ium-1-yl]propyl]-2,3-dihydro-1H-indene-5-carboxamide ?
user
C19H29N2O+
assistant