You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-chloro-N-hydroxy-4-[3-[5-hydroxy-3-(2-methoxyethoxycarbonyl)-2-methylindol-1-yl]propylamino]benzeneamine oxide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H26ClN3O6
assistant