12'-Hydroxy-2,2,2',2'-tetramethyl-6,6',7-trimethoxy-oxyacanthanium diodide 61646-17-1 N-Methyloxyacanthine diiodide Oxyacanthanium, 12'-hydroxy-2,2,2',2'-tetramethyl-6,6',7-trimethoxy-, diiodide Oxyacanthine dimethiodide