You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-(3,3-dimethyl-2-oxobutylidene)-5-[(4-hydroxyphenyl)methylidene]-3-methyl-1,3-thiazolidin-4-one by IUPAC nomenclature, provide its molecular formula.
user
C17H19NO3S
assistant