You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[(E)-[(Z)-3-(2-methoxyphenyl)prop-2-enylidene]amino]-3-(4-methylphenyl)-1H-1,2,4-triazole-5-thione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H18N4OS
assistant