Cyanine 647NS Ex/Em 639/668 nm MW: 770 MW added to protein: 439 Dark blue solid soluble in DMF or DMSO Store desiccated at -20°C; protect from light Ex/Em 639/668 nm MW: 770 MW added to protein: 439 Dark blue solid soluble in DMF or DMSO Store desiccated at -20°C; protect from light