You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[3-(2-methyltetrazol-5-yl)phenyl]-2-[(2-oxo-3,4-dihydro-1H-quinolin-7-yl)oxy]acetamide into molecular formula.
user
C19H18N6O3
assistant