6-Carboxy-4',5'-dichloro-2', 7'-dimethoxyfluorescein succinimidyl ester

Synthetic. Chemical. CAS: 113394-23-3. Formula: C27H17Cl2NO11. MW: 602.34. Synthetic. Amine-reactive fluorescent probe. A conventional fluorophore predominantly used in automated DNA sequencing. It is also used to label nucleotides. Characterized by an intermediate-wavelength spectra, high quantum yield, and low pH sensitivity in the physiological range. Has a similar absorption and emission spectra to those of rhodamine 6G. Spectral Data: lambdaex 520nm, lambdaem550 nm in Buffer pH 12, lambdaex 520nm, lambdaem 548nm in DMSO.