- 1-Ethyl-2-(5-(1-ethyl-3,3-dimethyl-5-sulfoindolin-2-ylidene)penta-1,3-dien-1-yl)-3,3-dimethyl-3H-indol-1-ium-5-sulfonate,97%, 1g
- 4-(2-(7-(1-(5-Carboxypentyl)-3,3-dimethyl-5-sulfoindolin-2-ylidene)hepta-1,3,5-trien-1-yl)-3,3-dimethyl-5-sulfo-3H-indol-1-ium-1-yl)butane-1-sulfonate,95%, 250mg