You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-[5-(4-aminophenyl)-3-(4-fluorophenyl)-3,4-dihydropyrazol-2-yl]ethanone;ethanethiol by IUPAC nomenclature, provide its molecular formula.
user
C19H22FN3OS
assistant