14620-24-7 6,6'-Dibromo-3,3'-dimethylpentamethinethiacyanine iodide 6,6'-Dibromo-3,3'-dimethylthiadicarbocyanine iodide BENZOTHIAZOLIUM, 6-BROMO-2-(5-(6-BROMO-3-METHYL-2-BENZOTHIAZOLINYLIDENE)-1,3-PEN Benzothiazolium, 6-bromo-2-(5-(6-bromo-3-methyl-2-benzothiazolinylidene)-1,3-pentadienyl)-3-methyl-, iodide