You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-[(benzyl-hydroxy-methyl-lambda4-sulfanyl)amino]propyl-[2-[(3,5-diamino-6-chloropyrazine-2-carbonyl)amino]ethyl]-dimethylazanium;ethane into molecular formula.
user
C22H39ClN7O2S+
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