You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 5-butyl-2-[4-methyl-3-(2-phenylethyl)piperazin-1-yl]-6-thia-4,8,14-triazatricyclo[8.4.0.03,7]tetradeca-1,3(7),4,9,11,13-hexaene;dihydrochloride into its molecular formula.
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C27H35Cl2N5S
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