Absorption and fluorescence emission spectra of 6-carboxy-4',5'-dichloro-2',7'-dimethoxyfluorescein (6-JOE) in pH 9.0 buffer.
C6171MP: 6-carboxy-4',5'-dichloro-2',7'-dimethoxyfluorescein, succinimidyl ester (6-JOE, SE)