You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[1-(3-ethylthiophen-2-yl)-2-(3-fluorophenyl)ethyl]hydrazine is the IUPAC name of a molecule. Please give its SMILES representation.
user
CCC1=C(C(CC2=CC=CC(F)=C2)NN)SC=C1
assistant