Synonym3-methyl-2-[2-[(3-methyl-2(3H)-benzothiazolylidene)methyl]-1-butenyl]-benzothiazolium iodide(3,3'-dimethyl-9-ethyl-2,2'-thiacarbocyanine iodide); 3,3'-dimethyl-9-ethyl-2,2'-thiacarbocyanine iodide