You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[4-[(Z)-[3-(3-chlorophenyl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-2-methoxyphenoxy]acetic acid by IUPAC nomenclature, provide its molecular formula.
user
C19H14ClNO5S2
assistant