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1-Methyl-4-phenylpyridinium chloride with cas registry number of 39794-99-5 is also known as 1-Methyl-4-phenylpyridinium chloride ; Cyperquat chloride ; Pyridinium,1-methyl-4-phenyl-, chloride . This substance is a derivative of cyperquat and it is toxic to human beings when swallowed. 1-Methyl-4-phenylpyridinium chloride with cas registry number of 39794-99-5 is used as a herbicide . It is quick-acting and non-selective, killing green plant tissue on contact. It is non-selective, which means it kills a wide range of annual grasses and broad-leaved weeds and the tops of established perennial weeds.
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