You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-benzhydryloxy-8-methyl-8-azabicyclo[3.2.1]octane;but-2-enedioic acid;1-methyl-4-(3-methylsulfanyl-5,6-dihydrobenzo[b][1]benzothiepin-5-yl)piperazine;sulfuric acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C45H55N3O9S3
assistant