You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[1-[2-(6,7-dihydro-4H-thieno[3,2-c]pyridin-5-yl)-1,3-thiazol-5-yl]ethyl]propan-1-amine by IUPAC nomenclature, provide its molecular formula.
user
C15H21N3S2
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