You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
S-[(1R,2R,4R)-1-(dicyclohexylsulfamoylmethyl)-7,7-dimethyl-2-bicyclo[2.2.1]heptanyl] 2-[(3S,5R)-5-hexadecyl-3,5-dimethyldioxolan-3-yl]ethanethioate is the IUPAC name of a molecule. Please give its molecular formula.
user
C45H81NO5S2
assistant