You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 5-ethylsulfonyl-4-(4-fluorophenyl)-2,3,3a,6a-tetrahydro-1H-thieno[2,3-c]pyrazol-3-amine .
user
C13H16FN3O2S2
assistant