You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[2-(aminomethyl)-4-methylpiperidin-1-yl]-3-(2,3-dihydro-1,4-benzodioxin-6-ylsulfanyl)propan-1-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C18H26N2O3S
assistant