You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
bis[[2-(2,5-dimethylphenyl)sulfanyl-2-hydroxyacetyl]oxy]phosphanyl 2-(2,5-dimethylphenyl)sulfanyl-2-hydroxyacetate is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H33O9PS3
assistant