for the following products
3,3'-Dihydroxyethyl-5,5'-dimethyl-9-methylthiacarbocyanine bromide | 3-(2-Hydroxyethyl)-2-[3-((3-(2-hydroxyethyl)-5-methyl-3H-benzothiazol-2-ylidene)-2-methyl)-1-propenyl]-5-methyl-benzothi and 3,3'-bis-(2-Hydroxyethyl)-5,5',9-trimethylthiacarbocyanine bromide
