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 (1S)-N-[[2-(4-chlorophenyl)-1,3-thiazol-4-yl]methyl]-1,2,3,4-tetrahydronaphthalen-1-amine .
user
C20H19ClN2S
assistant