5(6)-ROX, SE (full name: 5-(and-6)-Carboxy-X-rhodamine, succinimidyl ester) is an amine-reactive long wavelength rhodamine dye. <ul> <li>&lamba;_Ex/&lamba; _Em (MeOH) = 568/595 nm</li> <li>Dark red solid soluble in DMSO or DMF</li> <li>Store at -20°C and protect from light</li> <li>C₃₇H₃₃N₃O₇</li> <li>MW: 631.7</li> <li>[114616-32-9]</li> </ul>