Synonyms: 3-Heptyl-2-[(3-heptyl-4-methyl-4-thiazolin-2-ylidene)methyl]-4-methylthialzoliumiodide (6CI); Thiazolium,3-heptyl-2-[(3-heptyl-4-methyl-2(3H)-thiazolylidene)methyl]-4-methyl-, iodide(9CI); Thiazolium,3-heptyl-2-[(3-heptyl-4-methyl-4-thiazolin-2-ylidene)methyl]-4-methyl-, iodide(8CI); 4,4'-Dimethyl-3,3'-diheptyl-2,2'-thiazolocyanine iodide; Kankohso 201;Pionin; Quaternium 73