You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 5-[2-(3,5-dimethylpiperazin-1-yl)ethyl]-4-methyl-1,3-thiazole;dihydrochloride by IUPAC nomenclature, provide its molecular formula.
user
C12H23Cl2N3S
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