You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-(3-heptylsulfanyl-6,7-dihydro-[1,2,4]triazino[5,6-d][3,1]benzoxazepin-6-yl)-N,N-dimethylaniline The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H31N5OS
assistant