For some applications, 5-(and-6)-carboxyrhodamine is a superior alternative to the widely used green fluorescent dye 5-(and-6)-carboxyfluorescein. The dye is insensitive to pH between 4 and 9 and is much more photostable than fluorescein. See spectra and photostability data under #90081. See Figure 7.5 for spectra.

• l_ex\l_em(MeOH) = 502/524 nm.
• Orange red solid soluble in H₂O (pH>6), DMF or DMSO.?
• Store at 4?C and protect from light.
• C₂₁H₁₅ClN₂O₅.?
• Mwt: 410.81