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 2-[2,3-dihydro-1,4-benzodioxin-6-yl(methylsulfonyl)amino]-N-[(2,3,4-trimethoxyphenyl)methyl]acetamide .
user
C21H26N2O8S
assistant