You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2S)-2-amino-4-methylsulfanyl-N-[(7S)-1,2,3-trimethoxy-10-methylsulfanyl-9-oxo-6,7-dihydro-5H-benzo[a]heptalen-7-yl]butanamide into its molecular formula.
user
C25H32N2O5S2
assistant