This product is fluorescently-labeled datura stramonium lectin (DSL) . DSL is a carbohydrate-binding lectin to N-acetylglucosamine and oligomers containing repeating N-acetylglucosamine sequences. Near-infrared CF® 740 has Ex/Em at 742/767 nm. This conjugate is supplied at 1 mg/mL (1 mL size) .