You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name (2S)-2-[[4-amino-5-(3-fluorophenyl)-1,2,4-triazol-3-yl]sulfanyl]-N-(4-ethoxyphenyl)propanamide ?
user
C19H20FN5O2S
assistant