You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (2R)-N-(2,5-dichlorophenyl)-1-[(1-phenyltetrazol-5-yl)methyl]pyrrolidine-2-carboxamide is given. What is its corresponding molecular formula?
user
C19H18Cl2N6O
assistant