You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (27-bromo-5,11,17,23-tetrapropoxy-25-pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(24),3(28),4,6,9,11,13(27),15,17,19(26),21(25),22-dodecaenyl)methanol .
user
C41H49BrO5
assistant