You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2R)-2-(1,3-benzothiazol-2-ylamino)-N-[(Z)-(5-morpholin-4-ylthiophen-2-yl)methylideneamino]propanamide into its molecular formula.
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C19H21N5O2S2
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