You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-oxo-2-[[(1S)-1,2,3,4-tetrahydronaphthalen-1-yl]amino]ethyl] 4-aminobenzoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H20N2O3
assistant