You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[2-hydroxy-1-(3-hydroxy-4-methyloctyl)-2,3,3a,9a-tetrahydro-1H-cyclopenta[b][1,4]benzodioxin-5-yl]oxy]acetic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H32O7
assistant