You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2R,3R,4S,5R,6R)-2-[4-(bromomethyl)-5-chlorothiophen-2-yl]-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxane by IUPAC nomenclature, provide its molecular formula.
user
C39H38BrClO5S
assistant