You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1S,2S,4R,6R,8S,9S,11S,12R,13S,19S)-8-[2-[2-(disulfanyl)ethylamino]acetyl]-12,19-difluoro-11-hydroxy-9,13-dimethyl-6-propyl-5,7-dioxapentacyclo[10.8.0.02,9.04,8.013,18]icosa-14,17-dien-16-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H37F2NO5S2
assistant