1-Ethyl-2-((3-methyl-3H-benzothiazol-2-ylidene)methyl)quinolinium iodide 125017-83-6 16055-33-7 51895-88-6 EINECS 240-201-2 Quinolinium, 1-ethyl-2-((3-methyl-2(3H)-benzothiazolylidene)methyl)-, iodide