You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1-amino-3-[(Z)-[4-(1,3-benzothiazol-2-yl)-1-(2,3-dimethylphenyl)-2,5,6-trioxopiperidin-3-ylidene]amino]thiourea .
user
C21H18N6O3S2
assistant