82855-40-1

JOE is a fluorescent dye and can be used as a fluorescent label in DNA sequencing, PCR, and LCR amplifications. JOE possesses an absorbance of 525 nm and an emission of 550 nm[1].

ChEBI: 6-carboxy-4',5'-dichloro-2',7'-dimethoxyfluorescein is a fluorescein compound having chloro substituents in the 4'- and 5'-positions, methoxy substituents in the 2'- and 7'-positions and a carboxy substituent at the 6-position. It has a role as a fluorochrome. It is functionally related to a fluorescein (lactone form).

[1] Tsybulsky DA, et al. 4',5'-Dichloro-2',7'-dimethoxy-5(6)-carboxyfluorescein (JOE): synthesis and spectral properties of oligonucleotide conjugates. J Org Chem. 2012 Jan 20;77(2):977-84. DOI:10.1021/jo202229t