(Picolyl-) Azides of fluorescent dyes can be used for the fluorescent labeling of terminal Alkyne and strained Alknye (e.g DBCO)-labeled molecules via Cu(I)-catalyzed Alknye-Azide (CUAAC) or Cu(I)-free strain-promoted Alkyne-Azide Click Chemistry (SPAAC) reaction, respectively.
Standard Dyes such as Cy3, Tamra or Texas Red have been thoroughly selected to cover the whole UV-Vis spectrum. Novel Alternative Dyes are available as well.
 

发光颜色	染料母体	叠氮化合物
blue	3-Azido-7-hydroxycoumarin	3-Azido-7-hydroxycoumarin
green	BDP-FL	Azide - BDP-FL
	(also known as BODIPY FL)
	5-Fluorescein (5-FAM)	5-FAM-Azide
	6-Fluorescein (6-FAM)	6-FAM-Azide
	5/6-Fluorescein (5/6-FAM)	Picolyl-Azide-5/6-FAM
	AF488	AF488-Azide
	(also known as Alexa Fluor 488)	AF488-Picolyl-Azide
	5/6-Carboxyrhodamine 110	5/6-Carboxyrhodamine 110-PEG3-Azide
yellow- green	5-SIMA	5-SIMA-Azide
yellow	5-TAMRA	5-TAMRA-Azide
	5/6-TAMRA	5/6-TAMRA-PEG3-Azide
		Picolyl-Azide-5/6-TAMRA
	Cy3	Cy3-Azide
	Sulfo-Cy3	Sulfo-Cy3-Azide
		Picolyl-Azide-Sulfo-Cy3
	AF546	AF546-Azide
	(also known as Alexa Fluor 546)	AF546-Picolyl-Azide
	AF555	AF555-Azide
	(structural analog to Alexa Fluor 555)	AF555-Picolyl-Azide
orange	5/6-Texas Red	5/6-Texas Red-PEG3-Azide
	AF594	AF594-Azide
	(also known as Alexa Fluor 594)	AF594-Picolyl-Azide
red	Cy5	Cy5-Azide
	Sulfo-Cy5	Sulfo-Cy5-Azide
		Picolyl-Azide-Sulfo-Cy5
	AF647	AF647-Azide
	(also known as Alexa Fluor 647)	AF647-Picolyl-Azide
	Cy5.5	Cy5.5-Azide
		Picolyl-Azide-Cy5.5
near-IR	Cy7	Picolyl-Azide-Cy7