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 5-(6-methoxy-7-methyl-3,4-dihydro-2H-chromen-4-yl)-N,N-dimethyl-1H-imidazole-2-sulfonamide .
user
C16H21N3O4S
assistant