3-Ethyl-5-methoxy-2-[2-(methylsulfanyl)but-1-en-1-yl]-1,3-benzoselenazol-3-ium iodide;benzoselenazolium, 3-ethyl-5-methoxy-2-[2-(methylthio)-1-buten-1-yl]-, iodide (1:1)
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