You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(4-tert-butylphenyl)-6-methoxy-2-(5-methyl-1,3,4-thiadiazol-2-yl)-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H29N3O4S
assistant