You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule carbanide;carbonic acid;2-(2-carboxyoxyethyldisulfanyl)ethyl hydrogen carbonate;2-(2-carboxyoxyethyldisulfanyl)ethyl methyl carbonate;platinum(4+);yttrium into molecular formula.
user
C28H58O21Pt2S6Y3
assistant