You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 4-[[(1R,4S,5R,8S,10S,12R,13R)-1,5-dimethyl-9-methylidene-11,14,15,16-tetraoxatetracyclo[10.3.1.04,13.08,13]hexadecan-10-yl]oxy]cyclohexan-1-ol .
user
C21H32O6
assistant