1-Ethyl-2-((3-ethyl-5-methoxy-3H-benzoselenazol-2-ylidene)methyl)-6-methoxyquinolinium iodide 50378-83-1 EINECS 256-566-6 Quinolinium, 1-ethyl-2-((3-ethyl-5-methoxy-2(3H)-benzoselenazolylidene)methyl)-6-methoxy-, iodide