You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 1-[[3-(2,3-dihydro-1,4-benzodioxin-6-yl)-5,5-dioxo-3a,4,6,6a-tetrahydrothieno[3,4-d]imidazol-2-yl]sulfanyl]propan-2-one .
user
C16H18N2O5S2
assistant