You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (4R,5E,9S,10E,11aS)-4,9-dihydroxy-6,10-dimethyl-3-(morpholin-4-ylmethyl)-3a,4,7,8,9,11a-hexahydro-3H-cyclodeca[b]furan-2-one by IUPAC nomenclature, provide its molecular formula.
user
C19H29NO5
assistant