14795-75-6 3,3',6,6'-Tetramethylpentamethinethiacyanine iodide 3,3',6,6'-Tetramethylthiadicarbocyanine iodide BENZOTHIAZOLIUM, 3,6-DIMETHYL-2-(5-(3,6-DIMETHYL-2-BENZOTHIAZOLINYLIDENE)-1,3-PE Benzothiazolium, 3,6-dimethyl-2-(5-(3,6-dimethyl-2-benzothiazolinylidene)-1,3-pentadienyl)-, iodide