InChI=1/C7H15N2/c1-8(2)6-5-7-9(3)4/h5-7H,1-4H3/q+ N-[(2E)-3-(dimethylamino)prop-2-en-1-ylidene]-N-methylmethanaminium methanaminium, N-[(2E)-3-(dimethylamino)-2-propenylidene]-N-methyl-