1-(2,3-Dichloroallyl)pyridinium chloride, Pyridinium,1-(2,3-dichloro-2-propenyl)-,chloride (9CI), 1,2-Dichlorpropenpyridiniumchlorid, 1-(2,3-Dichloroallyl)pyridiniumchloride (7CI), Pyridinium,1-(2,3-dichloroallyl)-,chloride (8CI), Pyridinium,1-(2,3-dichloro-2-propen-1-yl)-,chloride (1:1)