You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule [(Z)-[2-[[(2-methoxybenzoyl)amino]carbamoyl]-3,6,6-trimethyl-5,7-dihydro-1-benzofuran-4-ylidene]amino]thiourea into molecular formula.
user
C21H25N5O4S
assistant