You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-(1,3-benzothiazol-2-yl)-6-ethyl-7-hydroxy-8-(pyrrolidin-1-ylmethyl)chromen-4-one;dihydrochloride by IUPAC nomenclature, provide its molecular formula.
user
C23H24Cl2N2O3S
assistant