You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 2-[2,4,6-trioxo-3,5-bis[2-(3-sulfanylbutanoyloxy)ethyl]-1,3,5-triazinan-1-yl]ethyl 3-sulfanylbutanoate ?
user
C21H33N3O9S3
assistant