You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethane;1-naphthalen-2-yl-2-(1,4-oxathian-4-ium-4-yl)ethanone;1-naphthalen-2-yl-2-(thian-1-ium-1-yl)ethanone;1-naphthalen-2-yl-2-(thiolan-1-ium-1-yl)ethanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C51H59O4S3+3
assistant