A cyanine dye having the structure
has an overall positive charge greater than +1, by virtue of the presence of one to five positively charged N or P or S atoms, and also has a reactive or functional group by which it may be linked to a biomolecule or a solid surface.
一种靛菁
染料具有如下结构,由于存在一个到五个带正电荷的N、P或S原子,其总正电荷大于+1,并且还具有一个反应性或功能基团,可以将其连接到
生物分子或固体表面。