for the following products
4-(5,6-Dichloro-2-(3-(5,6-dichloro-1-ethyl-3-(4-sulfobutyl)-1H-benzo[d]imidazol-2(3H)-ylidene)prop-1-enyl)-1-ethyl-1H-benzo[d]imidazol-3-ium-3-yl)butane-1-sulfonate and 5,6-Dichloro-2-[3-[5,6-dichloro-1-ethyl-3-(4-sulfobutyl)benzimidazol-2-ylidene]propenyl]-1-ethyl-3-(4-sulfobutyl)benzimi
