You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
pentyl 4-[(6R,10R)-3-(4-pentoxycarbonylphenyl)-8-hexacyclo[6.4.2.13,11.01,6.05,10.011,13]pentadecanyl]benzoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C39H48O4
assistant