You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 7-[(3-chlorophenyl)methoxy]-3-(3,4-dihydro-2H-1,5-benzodioxepin-7-yl)-6-ethyl-4a,5,6,7,8,8a-hexahydrochromen-4-one ?
user
C27H29ClO5
assistant