You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-ethyl-N',2-dimethyl-2-propyl-N'-(1-thiophen-2-ylpropan-2-yl)propane-1,3-diamine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H32N2S
assistant