You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl (3S)-1-[2-[[(1R)-1-cyano-1-cyclopropylethyl]amino]-2-oxoethyl]piperidin-1-ium-3-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H26N3O3+
assistant