| 摘要 |
Long wavelength, narrow emission bandwidth fluorecein dyes are provided for detecting spacially overlapping target substances. The dyes comprise 4,7-dichlorofluoresceins, and particularly 2',4',5',7'-tetrachloro-4,7-dichloro-5- (and 6-)carboxyfluoresceins. Methods and kits for using the dyes in DNA analysis are provided.
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