IR 650 Azide is a fluroescent agent with a terminal azide group. IR 650 Azide very hydrophilic, water-soluble far-red fluorescent dye that has a maximal absorption of 651 nm and emission at 668 nm. The azide group can react with alkyne, BCN, DBCO via Click Chemistry to yield a stable triazole linkage and as an azide-copper complex, the reaction works well under diluted conditions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.