You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[[7-[2-(4-hydroxyphenyl)ethynyl]furo[3,2-c]pyridin-2-yl]methylidene]-1,3-thiazolidine-2,4-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H10N2O4S
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