You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(1R)-3,5,5-trimethyl-4-[(1E,3E,5E,7E,9E,11E,13E)-3,7,12,16-tetramethyl-18-(2,6,6-trimethylcyclohexen-1-yl)octadeca-1,3,5,7,9,11,13-heptaenyl]cyclohex-3-en-1-yl] acetate is the IUPAC name of a molecule. Please give its molecular formula.
user
C42H62O2
assistant