You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule [(Z)-[3,6,6-trimethyl-2-[[(2-phenylacetyl)amino]carbamoyl]-5,7-dihydro-1-benzofuran-4-ylidene]amino]thiourea .
user
C21H25N5O3S
assistant