You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 42,44-dipropoxynonacyclo[31.6.2.13,11.113,21.123,31.04,9.015,20.024,29.034,39]tetratetraconta-1(40),3(44),4,6,8,10,13,15,17,19,21(43),23(42),24,26,28,30,33(41),34,36,38-icosaene-40,43-diol ?
user
C50H44O4
assistant