The present invention relates to a family of cyanine dyes possessing lipophilic alkyl chains and either one or more reactive functional groups, bromo or chloro, or phenyl, sulfophenyl or polysulfophenyl substituents or combinations thereof. The dyes of the invention are useful for staining membranes in cells or isolated from cells, and are well-retained therein. Additionally, the reactive dyes of the invention are useful for preparing dye-conjugates, thereby conferring the membrane staining ability of the subject dye onto the resulting dye-conjugate.
本发明涉及一类具有亲脂性烷基链和
溴或
氯或苯基、磺基苯基或多磺基苯基取代基或其组合的靛菁
染料家族。本发明的
染料适用于染色细胞中的膜或从细胞中分离出来的膜,并且在其中保持良好。此外,本发明的活性
染料适用于制备
染料共轭物,从而将所述
染料的膜染色能力赋予所得
染料共轭物。