You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-(3-chlorophenyl)-4-[(E)-(2,3-dihydroxyphenyl)methylideneamino]-1H-1,2,4-triazole-5-thione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H11ClN4O2S
assistant