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 N-(6-ethoxy-3-prop-2-enyl-1,3-benzothiazol-2-ylidene)-2,4-dimethyl-1,3-thiazole-5-carboxamide .
user
C18H19N3O2S2
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