On the website of the company Biotium that sells them they seem great, of course. But can anyone provide practical experience comparing say, CF 488A to similar dyes like Alexa 488 and Dylight 488 in terms of brightness and photostability?
" At present, CF® dyes bear the core structures of coumarin, pyrene, rhodamine or cyanine dyes. Blue fluorescent CF® dyes are based on coumarin or pyrene dye core "