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 ethyl 3-(prop-2-enylcarbamothioylamino)-4,5,6,7-tetrahydro-1-benzothiophene-2-carboxylate ?
user
C15H20N2O2S2
assistant