You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (2Z,5E)-5-(6-chloro-3-methyl-1,3-benzothiazol-2-ylidene)-3-ethyl-2-[[3-[2-(2-methylphenyl)ethyl]-1,3-thiazol-3-ium-2-yl]methylidene]-1,3-thiazolidin-4-one;chloride by IUPAC nomenclature, provide its molecular formula.
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C26H25Cl2N3OS3
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