You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 3-methyl-5-[4-(4-methylpiperazin-1-yl)phenyl]-1-phenyl-7H-thieno[2,3-c]pyran-1-amine into its molecular formula.
user
C25H29N3OS
assistant