You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-(4-tert-butylphenyl)-1-ethyl-1,7,7-trimethyl-4-propan-2-yl-3,6,8,9-tetrahydrofuro[3,4-c]quinolin-9-ol is the IUPAC name of a molecule. Please give its molecular formula.
user
C29H41NO2
assistant