You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-cyclopropyl-4-(1,2,3,4-tetrahydroisoquinoline-3-carbonyl)piperazin-2-one;hydrochloride by IUPAC nomenclature, provide its molecular formula.
user
C17H22ClN3O2
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