A fluoresent compound used for the rapid and selective modification of sulfhydryl groups of enzymes.Fluorescence: max. Abs. 535nm; max. Em. 605nm; Melting Point: 186-191°C (dec.)Solubility:Dimethylformamide, Dimethyl Sulfoxide, MethanolStability: Moisture, Light SensitiveStorage and Stability:Store at -20°C under inert atmosphere. Caution: Hygroscopic. For maximum recovery of product, centrifuge the original vial prior to removing the cap.