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2-[[4-[(2-Pyridinyl)cyanomethylene]-2,5-cyclohexadien-1-ylidene]cyanomethyl]-1-methylpyridin-1-ium Structure

2-[[4-[(2-Pyridinyl)cyanomethylene]-2,5-cyclohexadien-1-ylidene]cyanomethyl]-1-methylpyridin-1-ium