You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 9-cyclopropyl-8-methoxy-7-pyridin-4-yl-[1,2]thiazolo[5,4-b]quinoline-3,4-dione;hydrochloride .
user
C19H16ClN3O3S
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