You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(4S)-5-(5-bromo-3-chloropyridin-2-yl)oxy-2,4-dimethylpentan-2-yl]carbamic acid by IUPAC nomenclature, provide its molecular formula.
user
C13H18BrClN2O3
assistant